-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Martin Trapp, Christian Schaefer
-**
-**
-*/
-
-# include "ircons.h"
-# include "irgraph.h"
-# include "irprog.h"
-# include "iropt.h"
-# include "array.h"
-# include "irgmod.h"
+/*
+ * 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.
+ */
+
+/**
+ * @file
+ * @brief Entry point to the representation of procedure code.
+ * @author Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Michael Beck
+ */
+#include "config.h"
+
+#include <string.h>
+#include <stddef.h>
+
+#include "xmalloc.h"
+#include "ircons_t.h"
+#include "irgraph_t.h"
+#include "irprog_t.h"
+#include "irgraph_t.h"
+#include "irnode_t.h"
+#include "iropt_t.h"
+#include "irflag_t.h"
+#include "array.h"
+#include "irgmod.h"
+#include "irouts.h"
+#include "irhooks.h"
+#include "irtools.h"
+#include "util.h"
+#include "irgwalk.h"
+#include "irbackedge_t.h"
+#include "iredges_t.h"
+#include "type_t.h"
+#include "irmemory.h"
+#include "iroptimize.h"
+#include "irgopt.h"
+
+#define INITIAL_IDX_IRN_MAP_SIZE 1024
+
+/**
+ * Indicates, whether additional data can be registered to graphs.
+ * If set to 1, this is not possible anymore.
+ */
+static int forbid_new_data = 0;
+
+/**
+ * The amount of additional space for custom data to be allocated upon
+ * creating a new graph.
+ */
+static size_t additional_graph_data_size = 0;
ir_graph *current_ir_graph;
+ir_graph *get_current_ir_graph(void)
+{
+ return current_ir_graph;
+}
+
+void set_current_ir_graph(ir_graph *graph)
+{
+ current_ir_graph = graph;
+}
+
+/** contains the suffix for frame type names */
+static ident *frame_type_suffix = NULL;
+
+void firm_init_irgraph(void)
+{
+ frame_type_suffix = new_id_from_str(FRAME_TP_SUFFIX);
+ forbid_new_data = 1;
+}
+
+/**
+ * Allocate a new IR graph.
+ * This function respects the registered graph data. The only reason for
+ * this function is, that there are two locations, where graphs are
+ * allocated (new_r_ir_graph, new_const_code_irg).
+ * @return Memory for a new graph.
+ */
+static ir_graph *alloc_graph(void)
+{
+ ir_graph *res;
+ size_t size = sizeof(ir_graph) + additional_graph_data_size;
+ char *ptr = XMALLOCNZ(char, size);
+
+ res = (ir_graph *)(ptr + additional_graph_data_size);
+ res->kind = k_ir_graph;
+
+ /* initialize the idx->node map. */
+ res->idx_irn_map = NEW_ARR_F(ir_node *, INITIAL_IDX_IRN_MAP_SIZE);
+ memset(res->idx_irn_map, 0, INITIAL_IDX_IRN_MAP_SIZE * sizeof(res->idx_irn_map[0]));
+
+ return res;
+}
+
+/**
+ * Frees an allocated IR graph
+ */
+static void free_graph(ir_graph *irg)
+{
+ char *ptr = (char *)irg;
+ ir_edge_kind_t i;
+
+ for (i = EDGE_KIND_FIRST; i < EDGE_KIND_LAST; ++i)
+ edges_deactivate_kind(irg, i);
+ DEL_ARR_F(irg->idx_irn_map);
+ free(ptr - additional_graph_data_size);
+}
+
+void irg_set_nloc(ir_graph *res, int n_loc)
+{
+ assert(res->phase_state == phase_building);
+
+ res->n_loc = n_loc + 1; /* number of local variables that are never
+ dereferenced in this graph plus one for
+ the store. This is not the number of
+ parameters to the procedure! */
+
+ if (res->loc_descriptions) {
+ xfree(res->loc_descriptions);
+ res->loc_descriptions = NULL;
+ }
+}
+
+ir_graph *new_r_ir_graph(ir_entity *ent, int n_loc)
+{
+ ir_graph *res;
+ ir_node *first_block;
+ ir_node *start, *start_block, *initial_mem, *projX;
-/* Allocates a list of nodes:
- - The start block containing a start node and Proj nodes for it's four
- results (X, M, P, Tuple).
- - The end block containing an end node. This block is not matured after
- new_ir_graph as predecessors need to be added to it.
- - The current block, which is empty and also not matured.
- Further it allocates several datastructures needed for graph construction
- and optimization.
-*/
-ir_graph *
-new_ir_graph (entity *ent, int params)
-{
- ir_graph *res;
- ir_node *first_block;
- ir_node *projX;
-
- res = (ir_graph *) malloc (sizeof (ir_graph));
- current_ir_graph = res;
- add_irp_irg(res); /* remember this graph global. */
-
- /** Internal information for graph construction either held in the graph or
- *** initialized for each graph. **/
- res->params = params + 1; /* number of local variables that are never
- dereferenced in this graph plus one for
- the store. This is not the number of parameters
- to the procedure! */
- res->visited = 0; /* visited flag, for the ir walker */
- res->block_visited=0; /* visited flag, for the 'block'-walker */
-
-#if USE_EXPICIT_PHI_IN_STACK
- res->Phi_in_stack = new_Phi_in_stack(); /* A stack needed for automatic Phi
- generation */
+ res = alloc_graph();
+
+ /* inform statistics here, as blocks will be already build on this graph */
+ hook_new_graph(res, ent);
+
+ /*-- initialized for each graph. --*/
+ res->kind = k_ir_graph;
+ res->obst = XMALLOC(struct obstack);
+ obstack_init(res->obst);
+
+ res->phase_state = phase_building;
+ irg_set_nloc(res, n_loc);
+
+ /* descriptions will be allocated on demand */
+ res->loc_descriptions = NULL;
+
+ res->visited = 0; /* visited flag, for the ir walker */
+ res->block_visited = 0; /* visited flag, for the 'block'-walker */
+
+ res->last_node_idx = 0;
+
+ new_identities(res);
+ res->outs = NULL;
+
+ res->inline_property = irg_inline_any;
+ res->additional_properties = mtp_property_inherited; /* inherited from type */
+
+ res->irg_pinned_state = op_pin_state_pinned;
+ res->typeinfo_state = ir_typeinfo_none;
+ set_irp_typeinfo_inconsistent(); /* there is a new graph with typeinfo_none. */
+ res->callee_info_state = irg_callee_info_none;
+ res->class_cast_state = ir_class_casts_transitive;
+ res->fp_model = fp_model_precise;
+ res->mem_disambig_opt = aa_opt_inherited;
+
+ /*-- Type information for the procedure of the graph --*/
+ res->ent = ent;
+ set_entity_irg(ent, res);
+
+ /*-- a class type so that it can contain "inner" methods as in Pascal. --*/
+ res->frame_type = new_type_frame();
+
+ /* the Anchor node must be created first */
+ res->anchor = new_r_Anchor(res);
+
+ /*-- Nodes needed in every graph --*/
+ set_irg_end_block(res, new_r_immBlock(res));
+ set_irg_end(res, new_r_End(res, 0, NULL));
+
+ start_block = new_r_Block_noopt(res, 0, NULL);
+ set_irg_start_block(res, start_block);
+ set_irg_no_mem (res, new_r_NoMem(res));
+ start = new_r_Start(res);
+ set_irg_start (res, start);
+
+ /* Proj results of start node */
+ projX = new_r_Proj(start, mode_X, pn_Start_X_initial_exec);
+ set_irg_initial_exec (res, projX);
+ set_irg_frame (res, new_r_Proj(start, mode_P_data, pn_Start_P_frame_base));
+ set_irg_args (res, new_r_Proj(start, mode_T, pn_Start_T_args));
+ initial_mem = new_r_Proj(start, mode_M, pn_Start_M);
+ set_irg_initial_mem(res, initial_mem);
+
+ res->index = get_irp_new_irg_idx();
+#ifdef DEBUG_libfirm
+ res->graph_nr = get_irp_new_node_nr();
#endif
- res->obst = (struct obstack *) xmalloc (sizeof (struct obstack));
- obstack_init (res->obst);
- res->value_table = new_identities (); /* value table for global value numbering
- for optimizing use in iropt.c */
- /** Type inforamtion for the procedure of the graph **/
- res->ent = ent;
- ent->irg = res;
+ set_r_cur_block(res, start_block);
+ set_r_store(res, initial_mem);
+
+ /*-- Make a block to start with --*/
+ first_block = new_r_Block(res, 1, &projX);
+ set_r_cur_block(res, first_block);
+
+ res->method_execution_frequency = -1.0;
+ res->estimated_node_count = 0;
+
+ return res;
+}
+
+ir_graph *new_ir_graph(ir_entity *ent, int n_loc)
+{
+ ir_graph *res = new_r_ir_graph(ent, n_loc);
+ add_irp_irg(res); /* remember this graph global. */
+ return res;
+}
+
+ir_graph *new_const_code_irg(void)
+{
+ ir_graph *res = alloc_graph();
+ ir_node *body_block;
+ ir_node *end;
+ ir_node *end_block;
+ ir_node *no_mem;
+ ir_node *projX;
+ ir_node *start_block;
+ ir_node *start;
+
+ /* inform statistics here, as blocks will be already build on this graph */
+ hook_new_graph(res, NULL);
+
+ res->n_loc = 1; /* Only the memory. */
+ res->visited = 0; /* visited flag, for the ir walker */
+ res->block_visited = 0; /* visited flag, for the 'block'-walker */
+ res->obst = XMALLOC(struct obstack);
+ obstack_init(res->obst);
+
+ res->last_node_idx = 0;
+
+ res->phase_state = phase_building;
+ res->irg_pinned_state = op_pin_state_pinned;
+ res->fp_model = fp_model_precise;
+
+ /* value table for global value numbering for optimizing use in iropt.c */
+ new_identities(res);
+ res->ent = NULL;
+ res->frame_type = NULL;
+
+ /* the Anchor node must be created first */
+ res->anchor = new_r_Anchor(res);
+
+ /* -- The end block -- */
+ end_block = new_r_Block_noopt(res, 0, NULL);
+ set_irg_end_block(res, end_block);
+ end = new_r_End(res, 0, NULL);
+ set_irg_end(res, end);
+
+ /* -- The start block -- */
+ start_block = new_r_Block_noopt(res, 0, NULL);
+ set_irg_start_block(res, start_block);
+ no_mem = new_r_NoMem(res);
+ set_irg_no_mem(res, no_mem);
+ start = new_r_Start(res);
+ set_irg_start(res, start);
+
+ /* Proj results of start node */
+ set_irg_initial_mem(res, new_r_Proj(start, mode_M, pn_Start_M));
+ projX = new_r_Proj(start, mode_X, pn_Start_X_initial_exec);
+
+ body_block = new_r_Block(res, 1, &projX);
+
+ set_r_cur_block(res, body_block);
+
+ /* Set the visited flag high enough that the blocks will never be visited. */
+ set_irn_visited(body_block, -1);
+ set_Block_block_visited(body_block, -1);
+ set_Block_block_visited(start_block, -1);
+ set_irn_visited(start_block, -1);
+
+ return res;
+}
+
+/**
+ * Pre-Walker: Copies blocks and nodes from the original method graph
+ * to the copied graph.
+ *
+ * @param n A node from the original method graph.
+ * @param env The copied graph.
+ */
+static void copy_all_nodes(ir_node *node, void *env)
+{
+ ir_graph *irg = (ir_graph*)env;
+ ir_node *new_node = irn_copy_into_irg(node, irg);
+
+ set_irn_link(node, new_node);
+
+ /* fix access to entities on the stack frame */
+ if (is_Sel(new_node)) {
+ ir_entity *ent = get_Sel_entity(new_node);
+ ir_type *tp = get_entity_owner(ent);
+
+ if (is_frame_type(tp)) {
+ /* replace by the copied entity */
+ ent = (ir_entity*)get_entity_link(ent);
+
+ assert(is_entity(ent));
+ assert(get_entity_owner(ent) == get_irg_frame_type(irg));
+ set_Sel_entity(new_node, ent);
+ }
+ }
+}
+
+/**
+ * Post-walker: Set the predecessors of the copied nodes.
+ * The copied nodes are set as link of their original nodes. The links of
+ * "irn" predecessors are the predecessors of copied node.
+ */
+static void rewire(ir_node *irn, void *env)
+{
+ (void) env;
+ irn_rewire_inputs(irn);
+}
+
+static ir_node *get_new_node(const ir_node *old_node)
+{
+ return (ir_node*) get_irn_link(old_node);
+}
+
+ir_graph *create_irg_copy(ir_graph *irg)
+{
+ ir_graph *res;
+
+ res = alloc_graph();
+
+ res->n_loc = 0;
+ res->visited = 0; /* visited flag, for the ir walker */
+ res->block_visited = 0; /* visited flag, for the 'block'-walker */
+ res->obst = XMALLOC(struct obstack);
+ obstack_init(res->obst);
+
+ res->last_node_idx = 0;
+
+ res->phase_state = irg->phase_state;
+ res->irg_pinned_state = irg->irg_pinned_state;
+ res->fp_model = irg->fp_model;
+
+ new_identities(res);
+
+ /* clone the frame type here for safety */
+ irp_reserve_resources(irp, IRP_RESOURCE_ENTITY_LINK);
+ res->frame_type = clone_frame_type(irg->frame_type);
+
+ res->phase_state = irg->phase_state;
+
+ ir_reserve_resources(irg, IR_RESOURCE_IRN_LINK);
+
+ /* copy all nodes from the graph irg to the new graph res */
+ irg_walk_anchors(irg, copy_all_nodes, rewire, res);
+
+ /* copy the Anchor node */
+ res->anchor = get_new_node(irg->anchor);
+
+ /* -- The end block -- */
+ set_irg_end_block (res, get_new_node(get_irg_end_block(irg)));
+ set_irg_end (res, get_new_node(get_irg_end(irg)));
+
+ /* -- The start block -- */
+ set_irg_start_block(res, get_new_node(get_irg_start_block(irg)));
+ set_irg_no_mem (res, get_new_node(get_irg_no_mem(irg)));
+ set_irg_start (res, get_new_node(get_irg_start(irg)));
+
+ /* Proj results of start node */
+ set_irg_initial_mem(res, get_new_node(get_irg_initial_mem(irg)));
+
+ /* Copy the node count estimation. Would be strange if this
+ is different from the original one. */
+ res->estimated_node_count = irg->estimated_node_count;
+
+ ir_free_resources(irg, IR_RESOURCE_IRN_LINK);
+ irp_free_resources(irp, IRP_RESOURCE_ENTITY_LINK);
+
+ return res;
+}
+
+void free_ir_graph(ir_graph *irg)
+{
+ assert(is_ir_graph(irg));
+
+ edges_deactivate(irg);
+
+ hook_free_graph(irg);
+ free_irg_outs(irg);
+ del_identities(irg);
+ if (irg->ent) {
+ set_entity_irg(irg->ent, NULL); /* not set in const code irg */
+ }
+
+ free_End(get_irg_end(irg));
+ obstack_free(irg->obst, NULL);
+ free(irg->obst);
+ if (irg->loc_descriptions)
+ free(irg->loc_descriptions);
+ irg->kind = k_BAD;
+ free_graph(irg);
+}
+
+int (is_ir_graph)(const void *thing)
+{
+ return is_ir_graph_(thing);
+}
+
+#ifdef DEBUG_libfirm
+long get_irg_graph_nr(const ir_graph *irg)
+{
+ return irg->graph_nr;
+}
+#else
+long get_irg_graph_nr(const ir_graph *irg)
+{
+ return PTR_TO_INT(irg);
+}
+#endif
+
+size_t get_irg_idx(const ir_graph *irg)
+{
+ return irg->index;
+}
+
+ir_node *(get_idx_irn)(const ir_graph *irg, unsigned idx)
+{
+ return get_idx_irn_(irg, idx);
+}
+
+ir_node *(get_irg_start_block)(const ir_graph *irg)
+{
+ return get_irg_start_block_(irg);
+}
+
+void (set_irg_start_block)(ir_graph *irg, ir_node *node)
+{
+ set_irg_start_block_(irg, node);
+}
+
+ir_node *(get_irg_start)(const ir_graph *irg)
+{
+ return get_irg_start_(irg);
+}
+
+void (set_irg_start)(ir_graph *irg, ir_node *node)
+{
+ set_irg_start_(irg, node);
+}
+
+ir_node *(get_irg_end_block)(const ir_graph *irg)
+{
+ return get_irg_end_block_(irg);
+}
+
+void (set_irg_end_block)(ir_graph *irg, ir_node *node)
+{
+ set_irg_end_block_(irg, node);
+}
+
+ir_node *(get_irg_end)(const ir_graph *irg)
+{
+ return get_irg_end_(irg);
+}
+
+void (set_irg_end)(ir_graph *irg, ir_node *node)
+{
+ set_irg_end_(irg, node);
+}
+
+ir_node *(get_irg_initial_exec)(const ir_graph *irg)
+{
+ return get_irg_initial_exec_(irg);
+}
- /** Nodes needed in every graph **/
- res->end_block = new_Block ();
- res->end = new_End ();
+void (set_irg_initial_exec)(ir_graph *irg, ir_node *node)
+{
+ set_irg_initial_exec_(irg, node);
+}
- res->start_block = new_Block ();
- res->start = new_Start ();
- res->bad = new_ir_node (res, res->start_block, op_Bad, mode_T, 0, NULL);
+ir_node *(get_irg_frame)(const ir_graph *irg)
+{
+ return get_irg_frame_(irg);
+}
+
+void (set_irg_frame)(ir_graph *irg, ir_node *node)
+{
+ set_irg_frame_(irg, node);
+}
+
+ir_node *(get_irg_initial_mem)(const ir_graph *irg)
+{
+ return get_irg_initial_mem_(irg);
+}
+
+void (set_irg_initial_mem)(ir_graph *irg, ir_node *node)
+{
+ set_irg_initial_mem_(irg, node);
+}
- /* Proj results of start node */
- projX = new_Proj (res->start, mode_X, pns_initial_exec);
- set_store (new_Proj (res->start, mode_M, pns_global_store));
- res->frame = new_Proj (res->start, mode_p, pns_frame_base);
- res->globals = new_Proj (res->start, mode_p, pns_globals);
- res->args = new_Proj (res->start, mode_T, pns_args);
+ir_node *(get_irg_args)(const ir_graph *irg)
+{
+ return get_irg_args_(irg);
+}
- add_in_edge(res->start_block, projX);
- // The code generation needs it. leave it in now.
- // Use of this edge is matter of discussion, unresolved. Also possible:
- // add_in_edge(res->start_block, res->start_block), but invalid typed.
+void (set_irg_args)(ir_graph *irg, ir_node *node)
+{
+ set_irg_args_(irg, node);
+}
- mature_block (res->current_block);
+ir_node *(get_irg_no_mem)(const ir_graph *irg)
+{
+ return get_irg_no_mem_(irg);
+}
- /** Make a block to start with **/
- first_block = new_Block ();
- add_in_edge (first_block, projX);
+void (set_irg_no_mem)(ir_graph *irg, ir_node *node)
+{
+ set_irg_no_mem_(irg, node);
+}
- return res;
+ir_entity *(get_irg_entity)(const ir_graph *irg)
+{
+ return get_irg_entity_(irg);
}
-/* access routines for all ir_graph attributes:
- templates:
- {attr type} get_irg_{attribute name} (ir_graph *irg);
- void set_irg_{attr name} (ir_graph *irg, {attr type} {attr}); */
+void (set_irg_entity)(ir_graph *irg, ir_entity *ent)
+{
+ set_irg_entity_(irg, ent);
+}
-ir_node *
-get_irg_start_block (ir_graph *irg)
+ir_type *(get_irg_frame_type)(ir_graph *irg)
{
- return irg->start_block;
+ return get_irg_frame_type_(irg);
}
-void
-set_irg_start_block (ir_graph *irg, ir_node *node)
+void (set_irg_frame_type)(ir_graph *irg, ir_type *ftp)
{
- irg->start_block = node;
+ set_irg_frame_type_(irg, ftp);
}
-ir_node *
-get_irg_start (ir_graph *irg)
+int get_irg_n_locs(ir_graph *irg)
{
- return irg->start;
+ return irg->n_loc - 1;
}
-void
-set_irg_start(ir_graph *irg, ir_node *node)
+struct obstack *(get_irg_obstack)(const ir_graph *irg)
{
- irg->start = node;
+ return get_irg_obstack_(irg);
}
-ir_node *
-get_irg_end_block (ir_graph *irg)
+int node_is_in_irgs_storage(const ir_graph *irg, const ir_node *n)
{
- return irg->end_block;
+ struct _obstack_chunk *p;
+
+ /*
+ * checks weather the ir_node pointer is on the obstack.
+ * A more sophisticated check would test the "whole" ir_node
+ */
+ for (p = irg->obst->chunk; p; p = p->prev) {
+ if (((char *)p->contents <= (char *)n) && ((char *)n < (char *)p->limit))
+ return 1;
+ }
+
+ return 0;
}
-void
-set_irg_end_block (ir_graph *irg, ir_node *node)
+irg_phase_state (get_irg_phase_state)(const ir_graph *irg)
{
- irg->end_block = node;
+ return get_irg_phase_state_(irg);
}
-ir_node *
-get_irg_end (ir_graph *irg)
+void (set_irg_phase_state)(ir_graph *irg, irg_phase_state state)
{
- return irg->end;
+ set_irg_phase_state_(irg, state);
}
-void
-set_irg_end (ir_graph *irg, ir_node *node)
+op_pin_state (get_irg_pinned)(const ir_graph *irg)
{
- irg->end = node;
+ return get_irg_pinned_(irg);
}
-ir_node *
-get_irg_cstore (ir_graph *irg)
+void (set_irg_pinned)(ir_graph *irg, op_pin_state p)
{
- return irg->cstore;
+ set_irg_pinned_(irg, p);
}
-void
-set_irg_cstore (ir_graph *irg, ir_node *node)
+irg_callee_info_state (get_irg_callee_info_state)(const ir_graph *irg)
{
- irg->cstore = node;
+ return get_irg_callee_info_state_(irg);
}
-ir_node *
-get_irg_frame (ir_graph *irg)
+void (set_irg_callee_info_state)(ir_graph *irg, irg_callee_info_state s)
{
- return irg->frame;
+ set_irg_callee_info_state_(irg, s);
}
-void
-set_irg_frame (ir_graph *irg, ir_node *node)
+irg_inline_property (get_irg_inline_property)(const ir_graph *irg)
{
- irg->frame = node;
+ return get_irg_inline_property_(irg);
}
-ir_node *
-get_irg_globals (ir_graph *irg)
+void (set_irg_inline_property)(ir_graph *irg, irg_inline_property s)
{
- return irg->globals;
+ set_irg_inline_property_(irg, s);
}
-void
-set_irg_globals (ir_graph *irg, ir_node *node)
+mtp_additional_properties (get_irg_additional_properties)(const ir_graph *irg)
{
- irg->globals = node;
+ return get_irg_additional_properties_(irg);
}
-ir_node *
-get_irg_args (ir_graph *irg)
+void (set_irg_additional_properties)(ir_graph *irg, mtp_additional_properties property_mask)
{
- return irg->args;
+ set_irg_additional_properties_(irg, property_mask);
}
-void
-set_irg_args (ir_graph *irg, ir_node *node)
+void (add_irg_additional_properties)(ir_graph *irg, mtp_additional_properties flag)
{
- irg->args = node;
+ add_irg_additional_properties_(irg, flag);
}
-ir_node *
-get_irg_bad (ir_graph *irg)
+void (set_irg_link)(ir_graph *irg, void *thing)
{
- return irg->bad;
+ set_irg_link_(irg, thing);
}
-void
-set_irg_bad (ir_graph *irg, ir_node *node)
+void *(get_irg_link)(const ir_graph *irg)
{
- irg->bad = node;
+ return get_irg_link_(irg);
}
-ir_node *
-get_irg_current_block (ir_graph *irg)
+ir_visited_t (get_irg_visited)(const ir_graph *irg)
{
- return irg->current_block;
+ return get_irg_visited_(irg);
}
-void
-set_irg_current_block (ir_graph *irg, ir_node *node)
+/** maximum visited flag content of all ir_graph visited fields. */
+static ir_visited_t max_irg_visited = 0;
+
+void set_irg_visited(ir_graph *irg, ir_visited_t visited)
{
- irg->current_block = node;
+ irg->visited = visited;
+ if (irg->visited > max_irg_visited) {
+ max_irg_visited = irg->visited;
+ }
}
-entity *
-get_irg_ent (ir_graph *irg)
+void inc_irg_visited(ir_graph *irg)
{
- return irg->ent;
+ ++irg->visited;
+ if (irg->visited > max_irg_visited) {
+ max_irg_visited = irg->visited;
+ }
}
-void
-set_irg_ent (ir_graph *irg, entity *ent)
+ir_visited_t get_max_irg_visited(void)
{
- irg->ent = ent;
+ return max_irg_visited;
}
-int
-get_irg_params (ir_graph *irg)
+void set_max_irg_visited(int val)
{
- return irg->params;
+ max_irg_visited = val;
}
-void
-set_irg_params (ir_graph *irg, int params)
+ir_visited_t inc_max_irg_visited(void)
{
- irg->params = params;
+#ifndef NDEBUG
+ size_t i;
+ for (i = 0; i < get_irp_n_irgs(); i++)
+ assert(max_irg_visited >= get_irg_visited(get_irp_irg(i)));
+#endif
+ return ++max_irg_visited;
}
-unsigned long
-get_irg_visited (ir_graph *irg)
+ir_visited_t (get_irg_block_visited)(const ir_graph *irg)
{
- return irg->visited;
+ return get_irg_block_visited_(irg);
}
-void
-set_irg_visited (ir_graph *irg, unsigned long visited)
+void (set_irg_block_visited)(ir_graph *irg, ir_visited_t visited)
{
- irg->visited = visited;
+ set_irg_block_visited_(irg, visited);
}
-void
-inc_irg_visited (ir_graph *irg)
+void (inc_irg_block_visited)(ir_graph *irg)
{
- irg->visited = irg->visited++;
+ inc_irg_block_visited_(irg);
}
-unsigned long
-get_irg_block_visited (ir_graph *irg)
+unsigned (get_irg_fp_model)(const ir_graph *irg)
{
- return irg->block_visited;
+ return get_irg_fp_model_(irg);
}
-void
-set_irg_block_visited (ir_graph *irg, unsigned long visited)
+void set_irg_fp_model(ir_graph *irg, unsigned model)
+{
+ irg->fp_model = model;
+}
+
+void set_irg_loc_description(ir_graph *irg, int n, void *description)
+{
+ assert(0 <= n && n < irg->n_loc);
+
+ if (! irg->loc_descriptions)
+ irg->loc_descriptions = XMALLOCNZ(void*, irg->n_loc);
+
+ irg->loc_descriptions[n] = description;
+}
+
+void *get_irg_loc_description(ir_graph *irg, int n)
+{
+ assert(0 <= n && n < irg->n_loc);
+ return irg->loc_descriptions ? irg->loc_descriptions[n] : NULL;
+}
+
+#ifndef NDEBUG
+void ir_reserve_resources(ir_graph *irg, ir_resources_t resources)
+{
+ assert((irg->reserved_resources & resources) == 0);
+ irg->reserved_resources |= resources;
+}
+
+void ir_free_resources(ir_graph *irg, ir_resources_t resources)
+{
+ assert((irg->reserved_resources & resources) == resources);
+ irg->reserved_resources &= ~resources;
+}
+
+ir_resources_t ir_resources_reserved(const ir_graph *irg)
+{
+ return irg->reserved_resources;
+}
+#endif
+
+unsigned (get_irg_estimated_node_cnt)(const ir_graph *irg)
+{
+ return get_irg_estimated_node_cnt_(irg);
+}
+
+unsigned get_irg_last_idx(const ir_graph *irg)
+{
+ return irg->last_node_idx;
+}
+
+size_t register_additional_graph_data(size_t size)
+{
+ assert(!forbid_new_data && "Too late to register additional node data");
+
+ if (forbid_new_data)
+ return 0;
+
+ return additional_graph_data_size += size;
+}
+
+void add_irg_constraints(ir_graph *irg, ir_graph_constraints_t constraints)
+{
+ irg->constraints |= constraints;
+}
+
+void clear_irg_constraints(ir_graph *irg, ir_graph_constraints_t constraints)
+{
+ irg->constraints &= ~constraints;
+}
+
+int (irg_is_constrained)(const ir_graph *irg, ir_graph_constraints_t constraints)
+{
+ return irg_is_constrained_(irg, constraints);
+}
+
+void (add_irg_properties)(ir_graph *irg, ir_graph_properties_t props)
+{
+ add_irg_properties_(irg, props);
+}
+
+void (clear_irg_properties)(ir_graph *irg, ir_graph_properties_t props)
+{
+ clear_irg_properties_(irg, props);
+}
+
+int (irg_has_properties)(const ir_graph *irg, ir_graph_properties_t props)
+{
+ return irg_has_properties_(irg, props);
+}
+
+typedef void (*assure_property_func)(ir_graph *irg);
+
+void assure_irg_properties(ir_graph *irg, ir_graph_properties_t props)
{
- irg->block_visited = visited;
+ static struct {
+ ir_graph_properties_t property;
+ assure_property_func func;
+ } property_functions[] = {
+ { IR_GRAPH_PROPERTY_ONE_RETURN, normalize_one_return },
+ { IR_GRAPH_PROPERTY_MANY_RETURNS, normalize_n_returns },
+ { IR_GRAPH_PROPERTY_NO_CRITICAL_EDGES, remove_critical_cf_edges },
+ { IR_GRAPH_PROPERTY_NO_UNREACHABLE_CODE, remove_unreachable_code },
+ { IR_GRAPH_PROPERTY_NO_BADS, remove_bads },
+ { IR_GRAPH_PROPERTY_NO_TUPLES, remove_tuples },
+ { IR_GRAPH_PROPERTY_CONSISTENT_DOMINANCE, assure_doms },
+ { IR_GRAPH_PROPERTY_CONSISTENT_POSTDOMINANCE, assure_postdoms },
+ { IR_GRAPH_PROPERTY_CONSISTENT_OUT_EDGES, assure_edges },
+ { IR_GRAPH_PROPERTY_CONSISTENT_OUTS, assure_irg_outs },
+ { IR_GRAPH_PROPERTY_CONSISTENT_LOOPINFO, assure_loopinfo },
+ { IR_GRAPH_PROPERTY_CONSISTENT_ENTITY_USAGE, assure_irg_entity_usage_computed },
+ { IR_GRAPH_PROPERTY_CONSISTENT_DOMINANCE_FRONTIERS, ir_compute_dominance_frontiers },
+ };
+ size_t i;
+ for (i = 0; i < ARRAY_SIZE(property_functions); ++i) {
+ ir_graph_properties_t missing = props & ~irg->properties;
+ if (missing & property_functions[i].property)
+ property_functions[i].func(irg);
+ }
+ assert((props & ~irg->properties) == IR_GRAPH_PROPERTIES_NONE);
}
-void
-inc_irg_block_visited (ir_graph *irg)
+void confirm_irg_properties(ir_graph *irg, ir_graph_properties_t props)
{
- irg->block_visited = irg->block_visited++;
+ clear_irg_properties(irg, ~props);
+ if (! (props & IR_GRAPH_PROPERTY_CONSISTENT_OUT_EDGES))
+ edges_deactivate(irg);
+ if (! (props & IR_GRAPH_PROPERTY_CONSISTENT_OUTS)
+ && (irg->properties & IR_GRAPH_PROPERTY_CONSISTENT_OUTS))
+ free_irg_outs(irg);
+ if (! (props & IR_GRAPH_PROPERTY_CONSISTENT_DOMINANCE_FRONTIERS))
+ ir_free_dominance_frontiers(irg);
}