/*
- * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
* @author Sebastian Hack, Michael Beck, Andreas Schoesser
* @date 14.1.2005
* @version $Id$
- * @summary
+ * @brief
* This are out-edges (also called def-use edges) that are dynamically
* updated as the graph changes.
*/
#include "set.h"
#include "bitset.h"
#include "error.h"
+#include "irpass_t.h"
#include "iredgeset.h"
#include "hashptr.h"
#define SetRangeEmpty(ptr,size) memset(ptr, 0, (size) * sizeof((ptr)[0]))
#define hashset_init ir_edgeset_init
+void ir_edgeset_init_size(ir_edgeset_t *self, size_t size);
#define hashset_init_size ir_edgeset_init_size
#define hashset_destroy ir_edgeset_destroy
#define hashset_insert ir_edgeset_insert
#define hashset_remove ir_edgeset_remove
+ir_edge_t *ir_edgeset_find(const ir_edgeset_t *self, const ir_edge_t*);
#define hashset_find ir_edgeset_find
+size_t ir_edgeset_size(const ir_edgeset_t *self);
#define hashset_size ir_edgeset_size
#define hashset_iterator_init ir_edgeset_iterator_init
#define hashset_iterator_next ir_edgeset_iterator_next
*/
typedef void (set_edge_func_t)(ir_node *src, int pos, ir_node *tgt);
+/**
+ * A function that returns the "arity" of a given edge kind
+ * for a node.
+ */
typedef int (get_edge_src_arity_func_t)(const ir_node *src);
+/**
+ * A function that returns the pos'th edge of a given edge kind for a node.
+ */
typedef ir_node *(get_edge_src_n_func_t)(const ir_node *src, int pos);
/**
/**
* Get the predecessor block.
*/
-static ir_node *get_block_n(const ir_node *irn, int pos) {
- if (is_Block(irn))
- return get_Block_cfgpred_block(irn, pos);
+static ir_node *get_block_n(const ir_node *block, int pos)
+{
+ if (is_Block(block))
+ return get_Block_cfgpred_block(block, pos);
/* might be a Bad */
return NULL;
}
{ "dependency", set_irn_dep, 0, get_irn_deps, get_irn_dep }
};
-#define foreach_tgt(irn, i, n, kind) for(i = edge_kind_info[kind].first_idx, n = edge_kind_info[kind].get_arity(irn); i < n; ++i)
+#define foreach_tgt(irn, i, n, kind) for (i = edge_kind_info[kind].first_idx, n = edge_kind_info[kind].get_arity(irn); i < n; ++i)
#define get_n(irn, pos, kind) (edge_kind_info[kind].get_n(irn, pos))
#define get_kind_str(kind) (edge_kind_info[kind].name)
* Summed size of all users private data
*/
-static int edges_private_size = 0;
+static size_t edges_private_size = 0;
#define EDGE_SIZE (sizeof(ir_edge_t) + edges_private_size)
/**
*/
static int edges_dbg = 0;
-#ifdef DEBUG_libfirm
-/* a static variable holding the last number assigned to a new edge */
-static long last_edge_num = -1;
-#endif
-
-static inline long edge_get_id(const ir_edge_t *e) {
-#ifdef DEBUG_libfirm
- return e->edge_nr;
-#else /* DEBUG_libfirm */
+/**
+ * Returns an ID for the given edge.
+ */
+static inline long edge_get_id(const ir_edge_t *e)
+{
return (long)e;
-#endif /* DEBUG_libfirm */
}
/**
* Each user has to remember his given offset and the size of his private data.
* To be called before FIRM is initialized.
*/
-int edges_register_private_data(size_t n) {
- int res = edges_private_size;
+size_t edges_register_private_data(size_t n)
+{
+ size_t res = edges_private_size;
assert(!edges_used && "you cannot register private edge data, if edges have been initialized");
return res;
}
-/**
+/*
* Reset the user's private data at offset 'offset'
* The user has to remember his offset and the size of his data!
* Caution: Using wrong values here can destroy other users private data!
*/
-void edges_reset_private_data(ir_graph *irg, int offset, size_t size) {
+void edges_reset_private_data(ir_graph *irg, int offset, unsigned size)
+{
irg_edge_info_t *info = _get_irg_edge_info(irg, EDGE_KIND_NORMAL);
ir_edge_t *edge;
ir_edgeset_iterator_t iter;
* Initialize the out information for a graph.
* @note Dead node elimination can call this on an already initialized graph.
*/
-void edges_init_graph_kind(ir_graph *irg, ir_edge_kind_t kind) {
+void edges_init_graph_kind(ir_graph *irg, ir_edge_kind_t kind)
+{
if (edges_activated_kind(irg, kind)) {
irg_edge_info_t *info = _get_irg_edge_info(irg, kind);
size_t amount = irg->estimated_node_count * 2;
edges_used = 1;
- if(info->allocated) {
+ if (info->allocated) {
amount = ir_edgeset_size(&info->edges);
ir_edgeset_destroy(&info->edges);
obstack_free(&info->edges_obst, NULL);
/**
* Get the edge object of an outgoing edge at a node.
- * @param irg The graph, the node is in.
- * @param src The node at which the edge originates.
- * @param pos The position of the edge.
+ * @param irg The graph, the node is in.
+ * @param src The node at which the edge originates.
+ * @param pos The position of the edge.
+ * @param kind The kind of the edge.
* @return The corresponding edge object or NULL,
* if no such edge exists.
*/
-const ir_edge_t *get_irn_edge_kind(ir_graph *irg, const ir_node *src, int pos, ir_edge_kind_t kind)
+const ir_edge_t *get_irn_edge_kind(const ir_node *src, int pos, ir_edge_kind_t kind)
{
+ ir_graph *irg = get_irn_irg(src);
if (edges_activated_kind(irg, kind)) {
irg_edge_info_t *info = _get_irg_edge_info(irg, kind);
ir_edge_t key;
return NULL;
}
-/**
- * Get the edge object of an outgoing edge at a node.
- * Looks for an edge for all kinds.
- */
-const ir_edge_t *get_irn_edge(ir_graph *irg, const ir_node *src, int pos) {
- const ir_edge_t *edge;
- if((edge = get_irn_edge_kind(irg, src, pos, EDGE_KIND_NORMAL)) == NULL)
- edge = get_irn_edge_kind(irg, src, pos, EDGE_KIND_BLOCK);
- return(edge);
-}
-
/**
* Change the out count
*
* @param tgt the edge target
* @param kind the kind of the edge
*/
-static inline void edge_change_cnt(ir_node *tgt, ir_edge_kind_t kind, int ofs) {
+static inline void edge_change_cnt(ir_node *tgt, ir_edge_kind_t kind, int ofs)
+{
irn_edge_info_t *info = _get_irn_edge_info(tgt, kind);
info->out_count += ofs;
-
-#if 0
- assert(info->out_count >= 0);
- if (info->out_count == 0 && kind == EDGE_KIND_NORMAL) {
- /* tgt lost it's last user */
- int i;
-
- for (i = get_irn_arity(tgt) - 1; i >= -1; --i) {
- ir_node *prev = get_irn_n(tgt, i);
-
- edges_notify_edge(tgt, i, NULL, prev, current_ir_graph);
- }
- for (i = get_irn_deps(tgt) - 1; i >= 0; --i) {
- ir_node *prev = get_irn_dep(tgt, i);
-
- edges_notify_edge_kind(tgt, i, NULL, prev, EDGE_KIND_DEP, current_ir_graph);
-
- }
- }
-#endif
}
/**
* Verify the edge list of a node, ie. ensure it's a loop:
* head -> e_1 -> ... -> e_n -> head
*/
-static inline void vrfy_list_head(ir_node *irn, ir_edge_kind_t kind) {
+static inline void verify_list_head(ir_node *irn, ir_edge_kind_t kind)
+{
int err = 0;
int num = 0;
pset *lh_set = pset_new_ptr(16);
assert(err == 0);
}
+void edges_dump_kind(ir_graph *irg, ir_edge_kind_t kind)
+{
+ irg_edge_info_t *info;
+ ir_edgeset_t *edges;
+ ir_edgeset_iterator_t iter;
+ ir_edge_t *e;
+
+ if (!edges_activated_kind(irg, kind))
+ return;
+
+ info = _get_irg_edge_info(irg, kind);
+ edges = &info->edges;
+ foreach_ir_edgeset(edges, e, iter) {
+ ir_printf("%+F %d %d\n", e->src, e->pos, e->invalid);
+ }
+}
+
/* The edge from (src, pos) -> old_tgt is redirected to tgt */
void edges_notify_edge_kind(ir_node *src, int pos, ir_node *tgt,
ir_node *old_tgt, ir_edge_kind_t kind,
irg_edge_info_t *info;
ir_edgeset_t *edges;
ir_edge_t templ;
- ir_edge_t *edge;
assert(edges_activated_kind(irg, kind));
*/
if (tgt == NULL) {
/* search the edge in the set. */
- edge = ir_edgeset_find(edges, &templ);
+ ir_edge_t *edge = ir_edgeset_find(edges, &templ);
/* mark the edge invalid if it was found */
if (edge) {
edge->invalid = 1;
edge->pos = -2;
edge->src = NULL;
-#ifdef DEBUG_libfirm
- edge->edge_nr = -1;
-#endif /* DEBUG_libfirm */
edge_change_cnt(old_tgt, kind, -1);
} else {
/* If the edge was not found issue a warning on the debug stream */
/* If the old target is not null, the edge is moved. */
if (old_tgt) {
- edge = ir_edgeset_find(edges, &templ);
+ ir_edge_t *edge = ir_edgeset_find(edges, &templ);
assert(edge && "edge to redirect not found!");
assert(! edge->invalid && "Invalid edge encountered");
ir_edge_t *edge;
if (list_empty(&info->free_edges)) {
- edge = obstack_alloc(&info->edges_obst, EDGE_SIZE);
+ edge = (ir_edge_t*)obstack_alloc(&info->edges_obst, EDGE_SIZE);
} else {
edge = list_entry(info->free_edges.next, ir_edge_t, list);
list_del(&edge->list);
edge->kind = kind;
edge->list.next = NULL;
edge->list.prev = NULL;
- memset(((char*)edge) + sizeof(ir_edge_t), 0, edges_private_size);
- DEBUG_ONLY(edge->src_nr = get_irn_node_nr(src));
+ memset(edge + 1, 0, edges_private_size);
new_edge = ir_edgeset_insert(edges, edge);
if (new_edge != edge) {
msg = "adding";
list_add(&edge->list, head);
- DEBUG_ONLY(edge->edge_nr = ++last_edge_num);
}
edge_change_cnt(tgt, kind, +1);
/* verify list heads */
if (edges_dbg) {
if (tgt)
- vrfy_list_head(tgt, kind);
+ verify_list_head(tgt, kind);
if (old_tgt)
- vrfy_list_head(old_tgt, kind);
+ verify_list_head(old_tgt, kind);
}
#endif
DBG((dbg, LEVEL_5, "announce out edge: %+F %d-> %+F(%+F): %s\n", src, pos, tgt, old_tgt, msg));
}
-void edges_notify_edge(ir_node *src, int pos, ir_node *tgt, ir_node *old_tgt, ir_graph *irg)
+void edges_notify_edge(ir_node *src, int pos, ir_node *tgt, ir_node *old_tgt,
+ ir_graph *irg)
{
if (edges_activated_kind(irg, EDGE_KIND_NORMAL)) {
edges_notify_edge_kind(src, pos, tgt, old_tgt, EDGE_KIND_NORMAL, irg);
}
- if (edges_activated_kind(irg, EDGE_KIND_BLOCK) && is_Block(src)) {
- if (pos == -1) {
- /* a MacroBlock edge: ignore it here */
- } else {
- ir_node *bl_old = old_tgt ? get_nodes_block(skip_Proj(old_tgt)) : NULL;
+ if (edges_activated_kind(irg, EDGE_KIND_BLOCK)) {
+ if (is_Block(src)) {
+ ir_node *bl_old = old_tgt ? get_nodes_block(old_tgt) : NULL;
ir_node *bl_tgt = NULL;
if (tgt)
- bl_tgt = is_Bad(tgt) ? tgt : get_nodes_block(skip_Proj(tgt));
+ bl_tgt = is_Bad(tgt) ? tgt : get_nodes_block(tgt);
edges_notify_edge_kind(src, pos, bl_tgt, bl_old, EDGE_KIND_BLOCK, irg);
+ } else if (get_irn_mode(src) == mode_X && old_tgt != NULL && is_Block(old_tgt)) {
+ /* moving a jump node from one block to another */
+ const ir_edge_t *edge;
+ const ir_edge_t *next;
+ foreach_out_edge_kind_safe(old_tgt, edge, next, EDGE_KIND_BLOCK) {
+ ir_node *succ = get_edge_src_irn(edge);
+ int succ_pos = get_edge_src_pos(edge);
+ ir_node *block_pred = get_Block_cfgpred(succ, succ_pos);
+ if (block_pred != src)
+ continue;
+ edges_notify_edge_kind(succ, succ_pos, tgt, old_tgt,
+ EDGE_KIND_BLOCK, irg);
+ }
}
}
}
* @param kind the kind of edges to remove
* @param irg the irg of the old node
*/
-static void edges_node_deleted_kind(ir_node *old, ir_edge_kind_t kind, ir_graph *irg)
+static void edges_node_deleted_kind(ir_node *old, ir_edge_kind_t kind)
{
int i, n;
+ ir_graph *irg = get_irn_irg(old);
if (!edges_activated_kind(irg, kind))
return;
}
}
-struct build_walker {
- ir_graph *irg;
+/**
+ * A node might be revivaled by CSE. Assure its edges.
+ *
+ * @param irn the node
+ * @param kind the kind of edges to remove
+ * @param irg the irg of the old node
+ */
+static void edges_node_revival_kind(ir_node *irn, ir_edge_kind_t kind)
+{
+ irn_edge_info_t *info;
+ int i, n;
+ ir_graph *irg = get_irn_irg(irn);
+
+ if (!edges_activated_kind(irg, kind))
+ return;
+
+ info = _get_irn_edge_info(irn, kind);
+ if (info->edges_built)
+ return;
+
+ DBG((dbg, LEVEL_5, "node revivaled (kind: %s): %+F\n", get_kind_str(kind), irn));
+
+ foreach_tgt(irn, i, n, kind) {
+ ir_node *tgt = get_n(irn, i, kind);
+ edges_notify_edge_kind(irn, i, tgt, NULL, kind, irg);
+ }
+ info->edges_built = 1;
+}
+
+typedef struct build_walker {
ir_edge_kind_t kind;
bitset_t *reachable;
unsigned problem_found;
-};
+} build_walker;
/**
* Post-Walker: notify all edges
*/
-static void build_edges_walker(ir_node *irn, void *data) {
- struct build_walker *w = data;
+static void build_edges_walker(ir_node *irn, void *data)
+{
+ build_walker *w = (build_walker*)data;
int i, n;
ir_edge_kind_t kind = w->kind;
- ir_graph *irg = w->irg;
- get_edge_src_n_func_t *get_n;
+ ir_graph *irg = get_irn_irg(irn);
- get_n = edge_kind_info[kind].get_n;
foreach_tgt(irn, i, n, kind) {
ir_node *pred = get_n(irn, i, kind);
edges_notify_edge_kind(irn, i, pred, NULL, kind, irg);
}
+ _get_irn_edge_info(irn, kind)->edges_built = 1;
}
/**
* Pre-Walker: initializes the list-heads and set the out-count
* of all nodes to 0.
*/
-static void init_lh_walker(ir_node *irn, void *data) {
- struct build_walker *w = data;
- ir_edge_kind_t kind = w->kind;
- list_head *head = _get_irn_outs_head(irn, kind);
+static void init_lh_walker(ir_node *irn, void *data)
+{
+ build_walker *w = (build_walker*)data;
+ ir_edge_kind_t kind = w->kind;
+ list_head *head = _get_irn_outs_head(irn, kind);
INIT_LIST_HEAD(head);
- _get_irn_edge_info(irn, kind)->out_count = 0;
+ _get_irn_edge_info(irn, kind)->edges_built = 0;
+ _get_irn_edge_info(irn, kind)->out_count = 0;
}
/**
* b) it might be sufficient to add those stupid NO_REG nodes
* to the anchor
*/
-static void init_lh_walker_dep(ir_node *irn, void *data) {
- struct build_walker *w = data;
- ir_edge_kind_t kind = w->kind;
- list_head *head = _get_irn_outs_head(irn, kind);
- int i;
+static void init_lh_walker_dep(ir_node *irn, void *data)
+{
+ build_walker *w = (build_walker*)data;
+ ir_edge_kind_t kind = w->kind;
+ list_head *head = _get_irn_outs_head(irn, kind);
+ int i;
INIT_LIST_HEAD(head);
- _get_irn_edge_info(irn, kind)->out_count = 0;
+ _get_irn_edge_info(irn, kind)->edges_built = 0;
+ _get_irn_edge_info(irn, kind)->out_count = 0;
for (i = get_irn_deps(irn) - 1; i >= 0; --i) {
ir_node *dep = get_irn_dep(irn, i);
head = _get_irn_outs_head(dep, kind);
INIT_LIST_HEAD(head);
- _get_irn_edge_info(dep, kind)->out_count = 0;
+ _get_irn_edge_info(dep, kind)->edges_built = 0;
+ _get_irn_edge_info(dep, kind)->out_count = 0;
}
}
* Visitor: initializes the list-heads and set the out-count
* of all nodes to 0 of nodes that are not seen so far.
*/
-static void visitor(ir_node *irn, void *data) {
- visitor_info_t *info = data;
+static void visitor(ir_node *irn, void *data)
+{
+ visitor_info_t *info = (visitor_info_t*)data;
- if (!irn_visited(irn)) {
- mark_irn_visited(irn);
+ if (is_Deleted(irn))
+ return;
+ if (!is_Block(irn) && is_Deleted(get_nodes_block(irn)))
+ return;
+
+ if (!irn_visited_else_mark(irn)) {
info->visit(irn, info->data);
}
}
irg_edge_info_t *info = _get_irg_edge_info(irg, kind);
visitor_info_t visit;
- w.irg = irg;
w.kind = kind;
visit.data = &w;
* sent to.
* @param irg The graph.
*/
-void edges_reroute_kind(ir_node *from, ir_node *to, ir_edge_kind_t kind, ir_graph *irg)
+void edges_reroute_kind(ir_node *from, ir_node *to, ir_edge_kind_t kind)
{
+ ir_graph *irg = get_irn_irg(from);
set_edge_func_t *set_edge = edge_kind_info[kind].set_edge;
- if(set_edge && edges_activated_kind(irg, kind)) {
+ if (set_edge && edges_activated_kind(irg, kind)) {
struct list_head *head = _get_irn_outs_head(from, kind);
DBG((dbg, LEVEL_5, "reroute from %+F to %+F\n", from, to));
static void verify_set_presence(ir_node *irn, void *data)
{
- struct build_walker *w = data;
- ir_edgeset_t *edges = &_get_irg_edge_info(w->irg, w->kind)->edges;
+ build_walker *w = (build_walker*)data;
+ ir_graph *irg = get_irn_irg(irn);
+ ir_edgeset_t *edges = &_get_irg_edge_info(irg, w->kind)->edges;
int i, n;
foreach_tgt(irn, i, n, w->kind) {
templ.pos = i;
e = ir_edgeset_find(edges, &templ);
- if(e != NULL) {
+ if (e != NULL) {
e->present = 1;
} else {
w->problem_found = 1;
-#if 0
- ir_fprintf(stderr, "Edge Verifier: edge %+F,%d -> %+F (kind: \"%s\") is missing\n",
- irn, i, get_n(irn, i, w->kind), get_kind_str(w->kind));
-#endif
}
}
}
static void verify_list_presence(ir_node *irn, void *data)
{
- struct build_walker *w = data;
- const ir_edge_t *e;
+ build_walker *w = (build_walker*)data;
+ const ir_edge_t *e;
bitset_set(w->reachable, get_irn_idx(irn));
/* check list heads */
- vrfy_list_head(irn, w->kind);
+ verify_list_head(irn, w->kind);
foreach_out_edge_kind(irn, e, w->kind) {
ir_node *tgt;
if (w->kind == EDGE_KIND_NORMAL && get_irn_arity(e->src) <= e->pos) {
w->problem_found = 1;
-#if 0
- ir_fprintf(stderr, "Edge Verifier: edge(%ld) %+F -> %+F recorded at src position %d, but src has arity %d\n",
- edge_get_id(e), e->src, irn, e->pos, get_irn_arity(e->src));
-#endif
continue;
}
if (irn != tgt) {
w->problem_found = 1;
-#if 0
- ir_fprintf(stderr, "Edge Verifier: edge(%ld) %+F,%d (kind \"%s\") is no out edge of %+F but of %+F\n",
- edge_get_id(e), e->src, e->pos, get_kind_str(w->kind), irn, tgt);
-#endif
}
}
}
ir_edge_t *e;
ir_edgeset_iterator_t iter;
- w.irg = irg;
w.kind = kind;
w.reachable = bitset_alloca(get_irg_last_idx(irg));
w.problem_found = 0;
/**
* Clear link field of all nodes.
*/
-static void clear_links(ir_node *irn, void *env) {
- struct build_walker *w = env;
- bitset_t *bs;
+static void clear_links(ir_node *irn, void *env)
+{
+ bitset_t *bs;
+ ir_graph *irg;
+ (void) env;
if (IGNORE_NODE(irn)) {
set_irn_link(irn, NULL);
return;
}
- bs = bitset_malloc(get_irg_last_idx(w->irg));
+ irg = get_irn_irg(irn);
+ bs = bitset_malloc(get_irg_last_idx(irg));
set_irn_link(irn, bs);
}
/**
* Increases count (stored in link field) for all operands of a node.
*/
-static void count_user(ir_node *irn, void *env) {
+static void count_user(ir_node *irn, void *env)
+{
int i;
int first;
(void) env;
- first = -1;
+ first = is_Block(irn) ? 0 : -1;
for (i = get_irn_arity(irn) - 1; i >= first; --i) {
ir_node *op = get_irn_n(irn, i);
- bitset_t *bs = get_irn_link(op);
+ bitset_t *bs = (bitset_t*)get_irn_link(op);
if (bs)
bitset_set(bs, get_irn_idx(irn));
/**
* Verifies if collected count, number of edges in list and stored edge count are in sync.
*/
-static void verify_edge_counter(ir_node *irn, void *env) {
- struct build_walker *w = env;
+static void verify_edge_counter(ir_node *irn, void *env)
+{
+ build_walker *w = (build_walker*)env;
bitset_t *bs;
int list_cnt;
int ref_cnt;
int edge_cnt;
- unsigned long idx;
+ size_t idx;
const struct list_head *head;
const struct list_head *pos;
+ ir_graph *irg;
if (IGNORE_NODE(irn))
return;
- bs = get_irn_link(irn);
+ bs = (bitset_t*)get_irn_link(irn);
list_cnt = 0;
ref_cnt = 0;
edge_cnt = _get_irn_edge_info(irn, EDGE_KIND_NORMAL)->out_count;
/* check all nodes that reference us and count edges that point number
* of ins that actually point to us */
+ irg = get_irn_irg(irn);
ref_cnt = 0;
bitset_foreach(bs, idx) {
int i, arity;
- ir_node *src = get_idx_irn(w->irg, idx);
+ ir_node *src = get_idx_irn(irg, idx);
arity = get_irn_arity(src);
for (i = 0; i < arity; ++i) {
w->problem_found = 1;
ir_fprintf(stderr, "Edge Verifier: %+F reachable by %d node(s), but the list contains %d edge(s)\n",
irn, ref_cnt, list_cnt);
-
- /* Matze: buggy if a node has multiple ins pointing at irn */
-#if 0
- list_for_each(pos, head) {
- ir_edge_t *edge = list_entry(pos, ir_edge_t, list);
- bitset_flip(bs, get_irn_idx(edge->src));
- }
-
- if (ref_cnt < list_cnt)
- fprintf(stderr," following nodes are recorded in list, but not as user:\n");
- else
- fprintf(stderr," following nodes are user, but not recorded in list:\n");
-
- fprintf(stderr," ");
- bitset_foreach(bs, idx) {
- ir_node *src = get_idx_irn(w->irg, idx);
- ir_fprintf(stderr, " %+F", src);
- }
- fprintf(stderr, "\n");
-#endif
}
bitset_free(bs);
/**
* Verifies the out edges of an irg.
*/
-int edges_verify(ir_graph *irg) {
+int edges_verify(ir_graph *irg)
+{
struct build_walker w;
int problem_found = 0;
/* verify normal edges only */
problem_found = edges_verify_kind(irg, EDGE_KIND_NORMAL);
- w.irg = irg;
w.kind = EDGE_KIND_NORMAL;
w.problem_found = 0;
return problem_found ? 1 : w.problem_found;
}
-void init_edges(void) {
+typedef struct pass_t {
+ ir_graph_pass_t pass;
+ unsigned assert_on_problem;
+} pass_t;
+
+/**
+ * Wrapper to edges_verify to be run as an ir_graph pass.
+ */
+static int edges_verify_wrapper(ir_graph *irg, void *context)
+{
+ pass_t *pass = (pass_t*)context;
+ int problems_found = edges_verify(irg);
+ /* do NOT rerun the pass if verify is ok :-) */
+ assert(problems_found && pass->assert_on_problem);
+ return 0;
+}
+
+/* Creates an ir_graph pass for edges_verify(). */
+ir_graph_pass_t *irg_verify_edges_pass(const char *name, unsigned assert_on_problem)
+{
+ pass_t *pass = XMALLOCZ(pass_t);
+
+ def_graph_pass_constructor(
+ &pass->pass, name ? name : "edges_verify", edges_verify_wrapper);
+
+ /* neither dump nor verify */
+ pass->pass.dump_irg = (DUMP_ON_IRG_FUNC)ir_prog_no_dump;
+ pass->pass.verify_irg = (RUN_ON_IRG_FUNC)ir_prog_no_verify;
+
+ pass->assert_on_problem = assert_on_problem;
+ return &pass->pass;
+}
+
+void init_edges(void)
+{
FIRM_DBG_REGISTER(dbg, DBG_EDGES);
- /* firm_dbg_set_mask(dbg, -1); */
}
-void edges_init_dbg(int do_dbg) {
+void edges_init_dbg(int do_dbg)
+{
edges_dbg = do_dbg;
}
-void edges_activate(ir_graph *irg) {
+void edges_activate(ir_graph *irg)
+{
edges_activate_kind(irg, EDGE_KIND_NORMAL);
edges_activate_kind(irg, EDGE_KIND_BLOCK);
if (get_irg_phase_state(irg) == phase_backend)
edges_activate_kind(irg, EDGE_KIND_DEP);
}
-void edges_deactivate(ir_graph *irg) {
+void edges_deactivate(ir_graph *irg)
+{
if (get_irg_phase_state(irg) == phase_backend)
edges_deactivate_kind(irg, EDGE_KIND_DEP);
edges_deactivate_kind(irg, EDGE_KIND_BLOCK);
return activated;
}
-int edges_assure_kind(ir_graph *irg, ir_edge_kind_t kind) {
+int edges_assure_kind(ir_graph *irg, ir_edge_kind_t kind)
+{
int activated = edges_activated_kind(irg, kind);
if (!activated)
return activated;
}
-void edges_node_deleted(ir_node *irn, ir_graph *irg) {
- edges_node_deleted_kind(irn, EDGE_KIND_NORMAL, irg);
- edges_node_deleted_kind(irn, EDGE_KIND_BLOCK, irg);
+void edges_node_deleted(ir_node *irn)
+{
+ edges_node_deleted_kind(irn, EDGE_KIND_NORMAL);
+ edges_node_deleted_kind(irn, EDGE_KIND_BLOCK);
}
+void edges_node_revival(ir_node *irn)
+{
+ edges_node_revival_kind(irn, EDGE_KIND_NORMAL);
+ edges_node_revival_kind(irn, EDGE_KIND_BLOCK);
+}
-const ir_edge_t *(get_irn_out_edge_first_kind)(const ir_node *irn, ir_edge_kind_t kind) {
+const ir_edge_t *(get_irn_out_edge_first_kind)(const ir_node *irn, ir_edge_kind_t kind)
+{
return _get_irn_out_edge_first_kind(irn, kind);
}
-const ir_edge_t *(get_irn_out_edge_next)(const ir_node *irn, const ir_edge_t *last) {
+const ir_edge_t *(get_irn_out_edge_next)(const ir_node *irn, const ir_edge_t *last)
+{
return _get_irn_out_edge_next(irn, last);
}
-ir_node *(get_edge_src_irn)(const ir_edge_t *edge) {
+ir_node *(get_edge_src_irn)(const ir_edge_t *edge)
+{
return _get_edge_src_irn(edge);
}
-int (get_edge_src_pos)(const ir_edge_t *edge) {
+int (get_edge_src_pos)(const ir_edge_t *edge)
+{
return _get_edge_src_pos(edge);
}
-int (get_irn_n_edges_kind)(const ir_node *irn, ir_edge_kind_t kind) {
+int (get_irn_n_edges_kind)(const ir_node *irn, ir_edge_kind_t kind)
+{
return _get_irn_n_edges_kind(irn, kind);
}
-void dump_all_out_edges(ir_node *irn) {
- int i;
- for (i = 0; i < EDGE_KIND_LAST; ++i) {
- const ir_edge_t *edge;
+static void irg_walk_edges2(ir_node *node, irg_walk_func *pre,
+ irg_walk_func *post, void *env)
+{
+ const ir_edge_t *edge, *next;
- printf("kind \"%s\"\n", get_kind_str(i));
- foreach_out_edge_kind(irn, edge, i) {
- ir_printf("\t%+F(%d)\n", edge->src, edge->pos);
- }
+ if (irn_visited_else_mark(node))
+ return;
+
+ if (pre != NULL)
+ pre(node, env);
+
+ foreach_out_edge_kind_safe(node, edge, next, EDGE_KIND_NORMAL) {
+ /* find the corresponding successor block. */
+ ir_node *pred = get_edge_src_irn(edge);
+ irg_walk_edges2(pred, pre, post, env);
}
+
+ if (post != NULL)
+ post(node, env);
+}
+
+void irg_walk_edges(ir_node *node, irg_walk_func *pre, irg_walk_func *post,
+ void *env)
+{
+ ir_graph *irg = get_irn_irg(node);
+
+ assert(edges_activated(irg));
+ assert(is_Block(node));
+
+ ir_reserve_resources(irg, IR_RESOURCE_IRN_VISITED);
+
+ inc_irg_visited(irg);
+ irg_walk_edges2(node, pre, post, env);
+
+ ir_free_resources(irg, IR_RESOURCE_IRN_VISITED);
}
-static void irg_block_edges_walk2(ir_node *bl,
- irg_walk_func *pre, irg_walk_func *post,
- void *env) {
+static void irg_block_edges_walk2(ir_node *bl, irg_walk_func *pre,
+ irg_walk_func *post, void *env)
+{
const ir_edge_t *edge, *next;
if (!Block_block_visited(bl)) {
}
}
-void irg_block_edges_walk(ir_node *node,
- irg_walk_func *pre, irg_walk_func *post,
- void *env) {
+void irg_block_edges_walk(ir_node *node, irg_walk_func *pre,
+ irg_walk_func *post, void *env)
+{
+ ir_graph *irg = get_irn_irg(node);
- assert(edges_activated(current_ir_graph));
+ assert(edges_activated(irg));
assert(is_Block(node));
- ir_reserve_resources(current_ir_graph, IR_RESOURCE_BLOCK_VISITED);
+ ir_reserve_resources(irg, IR_RESOURCE_BLOCK_VISITED);
- inc_irg_block_visited(current_ir_graph);
+ inc_irg_block_visited(irg);
irg_block_edges_walk2(node, pre, post, env);
- ir_free_resources(current_ir_graph, IR_RESOURCE_BLOCK_VISITED);
+ ir_free_resources(irg, IR_RESOURCE_BLOCK_VISITED);
}
projects / libfirm / blobdiff