#include "xmalloc.h"
#include "irgwalk.h"
#include "irdom_t.h"
-#include "irgraph_t.h" /* To access state field. */
+#include "irgraph_t.h"
#include "irnode_t.h"
#include "ircons_t.h"
#include "array_t.h"
/** Accessing the dominator and post dominator data structures **/
/*--------------------------------------------------------------------*/
-ir_node *get_Block_idom(const ir_node *bl) {
+ir_node *get_Block_idom(const ir_node *bl)
+{
assert(is_Block(bl));
if (get_Block_dom_depth(bl) == -1) {
/* This block is not reachable from Start */
return get_dom_info(bl)->idom;
}
-void set_Block_idom(ir_node *bl, ir_node *n) {
+void set_Block_idom(ir_node *bl, ir_node *n)
+{
ir_dom_info *bli = get_dom_info(bl);
assert(is_Block(bl));
* If we don't set the root of the dominator tree
* Append bl to the dominates queue of n.
*/
- if(n != NULL) {
+ if (n != NULL) {
ir_dom_info *ni = get_dom_info(n);
bli->next = ni->first;
}
}
-ir_node *get_Block_ipostdom(const ir_node *bl) {
+ir_node *get_Block_ipostdom(const ir_node *bl)
+{
assert(is_Block(bl));
if (get_Block_postdom_depth(bl) == -1) {
/* This block is not reachable from Start */
return get_pdom_info(bl)->idom;
}
-void set_Block_ipostdom(ir_node *bl, ir_node *n) {
+void set_Block_ipostdom(ir_node *bl, ir_node *n)
+{
ir_dom_info *bli = get_pdom_info(bl);
assert(is_Block(bl));
* If we don't set the root of the post dominator tree
* Append bl to the post dominates queue of n.
*/
- if(n != NULL) {
+ if (n != NULL) {
ir_dom_info *ni = get_pdom_info(n);
bli->next = ni->first;
}
}
-int get_Block_dom_pre_num(const ir_node *bl) {
+int get_Block_dom_pre_num(const ir_node *bl)
+{
assert(is_Block(bl));
return get_dom_info(bl)->pre_num;
}
-void set_Block_dom_pre_num(ir_node *bl, int num) {
+void set_Block_dom_pre_num(ir_node *bl, int num)
+{
assert(is_Block(bl));
get_dom_info(bl)->pre_num = num;
}
-int get_Block_dom_depth(const ir_node *bl) {
+int get_Block_dom_depth(const ir_node *bl)
+{
assert(is_Block(bl));
return get_dom_info(bl)->dom_depth;
}
-void set_Block_dom_depth(ir_node *bl, int depth) {
+void set_Block_dom_depth(ir_node *bl, int depth)
+{
assert(is_Block(bl));
get_dom_info(bl)->dom_depth = depth;
}
-int get_Block_postdom_pre_num(const ir_node *bl) {
+int get_Block_postdom_pre_num(const ir_node *bl)
+{
assert(is_Block(bl));
return get_pdom_info(bl)->pre_num;
}
-void set_Block_postdom_pre_num(ir_node *bl, int num) {
+void set_Block_postdom_pre_num(ir_node *bl, int num)
+{
assert(is_Block(bl));
get_pdom_info(bl)->pre_num = num;
}
-int get_Block_postdom_depth(const ir_node *bl) {
+int get_Block_postdom_depth(const ir_node *bl)
+{
assert(is_Block(bl));
return get_pdom_info(bl)->dom_depth;
}
-void set_Block_postdom_depth(ir_node *bl, int depth) {
+void set_Block_postdom_depth(ir_node *bl, int depth)
+{
assert(is_Block(bl));
get_pdom_info(bl)->dom_depth = depth;
}
-unsigned get_Block_dom_tree_pre_num(const ir_node *bl) {
+unsigned get_Block_dom_tree_pre_num(const ir_node *bl)
+{
assert(is_Block(bl));
return get_dom_info(bl)->tree_pre_num;
}
-unsigned get_Block_dom_max_subtree_pre_num(const ir_node *bl) {
+unsigned get_Block_dom_max_subtree_pre_num(const ir_node *bl)
+{
assert(is_Block(bl));
return get_dom_info(bl)->max_subtree_pre_num;
}
-unsigned get_Block_pdom_tree_pre_num(const ir_node *bl) {
+unsigned get_Block_pdom_tree_pre_num(const ir_node *bl)
+{
assert(is_Block(bl));
return get_pdom_info(bl)->tree_pre_num;
}
-unsigned get_Block_pdom_max_subtree_pre_num(const ir_node *bl) {
+unsigned get_Block_pdom_max_subtree_pre_num(const ir_node *bl)
+{
assert(is_Block(bl));
return get_pdom_info(bl)->max_subtree_pre_num;
}
/* Check, if a block dominates another block. */
-int block_dominates(const ir_node *a, const ir_node *b) {
+int block_dominates(const ir_node *a, const ir_node *b)
+{
const ir_dom_info *ai, *bi;
if (is_Block(a) && is_Block(b)) {
}
/* Check, if a block strictly dominates another block. */
-int block_strictly_dominates(const ir_node *a, const ir_node *b) {
+int block_strictly_dominates(const ir_node *a, const ir_node *b)
+{
return (a != b) && block_dominates(a, b);
}
/* Returns the smallest common dominator block of two nodes. */
-ir_node *node_smallest_common_dominator(ir_node *a, ir_node *b) {
+ir_node *node_smallest_common_dominator(ir_node *a, ir_node *b)
+{
ir_node *bl_a = is_Block(a) ? a : get_nodes_block(a);
ir_node *bl_b = is_Block(b) ? b : get_nodes_block(b);
ir_node *dom_bl = NULL;
}
/* Returns the smallest common dominator block of all users of a node. */
-ir_node *node_users_smallest_common_dominator(ir_node *irn, int handle_phi) {
+ir_node *node_users_smallest_common_dominator(ir_node *irn, int handle_phi)
+{
int n, j, i = 0, success;
ir_node **user_blocks, *dom_bl;
const ir_edge_t *edge;
/* Get the first node in the list of nodes dominated by a given block. */
-ir_node *get_Block_dominated_first(const ir_node *bl) {
+ir_node *get_Block_dominated_first(const ir_node *bl)
+{
assert(is_Block(bl));
return get_dom_info(bl)->first;
}
/* Get the next node in a list of nodes which are dominated by some
* other node. */
-ir_node *get_Block_dominated_next(const ir_node *bl) {
+ir_node *get_Block_dominated_next(const ir_node *bl)
+{
assert(is_Block(bl));
return get_dom_info(bl)->next;
}
/* Check, if a block post dominates another block. */
-int block_postdominates(const ir_node *a, const ir_node *b) {
+int block_postdominates(const ir_node *a, const ir_node *b)
+{
const ir_dom_info *ai, *bi;
if (is_Block(a) && is_Block(b)) {
}
/* Check, if a block strictly dominates another block. */
-int block_strictly_postdominates(const ir_node *a, const ir_node *b) {
+int block_strictly_postdominates(const ir_node *a, const ir_node *b)
+{
return (a != b) && block_postdominates(a, b);
}
/* Get the first node in the list of nodes post dominated by a given block. */
-ir_node *get_Block_postdominated_first(const ir_node *bl) {
+ir_node *get_Block_postdominated_first(const ir_node *bl)
+{
assert(is_Block(bl));
return get_pdom_info(bl)->first;
}
/* Get the next node in a list of nodes which are post dominated by some
* other node. */
-ir_node *get_Block_postdominated_next(const ir_node *bl) {
+ir_node *get_Block_postdominated_next(const ir_node *bl)
+{
assert(is_Block(bl));
return get_pdom_info(bl)->next;
}
{
ir_node *p;
- if(pre)
+ if (pre)
pre(bl, env);
dominates_for_each(bl, p) {
dom_tree_walk(p, pre, post, env);
}
- if(post)
+ if (post)
post(bl, env);
}
{
ir_node *p;
- if(pre)
+ if (pre)
pre(bl, env);
postdominates_for_each(bl, p) {
postdom_tree_walk(p, pre, post, env);
}
- if(post)
+ if (post)
post(bl, env);
}
unsigned children = 0;
(void) data;
- for(p = bi->first; p; p = get_dom_info(p)->next) {
+ for (p = bi->first; p; p = get_dom_info(p)->next) {
unsigned max_p = get_dom_info(p)->max_subtree_pre_num;
max = max > max_p ? max : max_p;
children++;
unsigned children = 0;
(void) data;
- for(p = bi->first; p; p = get_pdom_info(p)->next) {
+ for (p = bi->first; p; p = get_pdom_info(p)->next) {
unsigned max_p = get_pdom_info(p)->max_subtree_pre_num;
max = max > max_p ? max : max_p;
children++;
/**
* count the number of blocks and clears the post dominance info
*/
-static void count_and_init_blocks_pdom(ir_node *bl, void *env) {
+static void count_and_init_blocks_pdom(ir_node *bl, void *env)
+{
int *n_blocks = (int *) env;
(*n_blocks) ++;
* Start block misses control dead blocks.
*/
static void init_tmp_dom_info(ir_node *bl, tmp_dom_info *parent,
- tmp_dom_info *tdi_list, int *used, int n_blocks) {
+ tmp_dom_info *tdi_list, int *used, int n_blocks)
+{
tmp_dom_info *tdi;
int i;
* End block misses blocks in endless loops.
*/
static void init_tmp_pdom_info(ir_node *bl, tmp_dom_info *parent,
- tmp_dom_info *tdi_list, int* used, int n_blocks) {
+ tmp_dom_info *tdi_list, int* used, int n_blocks)
+{
tmp_dom_info *tdi;
int i;
}
}
-static void dom_compress(tmp_dom_info *v) {
+static void dom_compress(tmp_dom_info *v)
+{
assert (v->ancestor);
if (v->ancestor->ancestor) {
dom_compress (v->ancestor);
* if V is a root, return v, else return the vertex u, not being the
* root, with minimum u->semi on the path from v to its root.
*/
-inline static tmp_dom_info *dom_eval(tmp_dom_info *v) {
+inline static tmp_dom_info *dom_eval(tmp_dom_info *v)
+{
if (!v->ancestor) return v;
dom_compress (v);
return v->label;
}
/** make V W's ancestor */
-inline static void dom_link(tmp_dom_info *v, tmp_dom_info *w) {
+inline static void dom_link(tmp_dom_info *v, tmp_dom_info *w)
+{
w->ancestor = v;
}
/**
* Walker: count the number of blocks and clears the dominance info
*/
-static void count_and_init_blocks_dom(ir_node *bl, void *env) {
+static void count_and_init_blocks_dom(ir_node *bl, void *env)
+{
int *n_blocks = (int *) env;
(*n_blocks) ++;
* @param irg the graph
* @param pre a walker function that will be called for every block in the graph
*/
-static int init_construction(ir_graph *irg, irg_walk_func *pre) {
+static int init_construction(ir_graph *irg, irg_walk_func *pre)
+{
ir_graph *rem = current_ir_graph;
ir_node *end;
int arity;
/* Computes the dominator trees. Sets a flag in irg to "dom_consistent".
If the control flow of the graph is changed this flag must be set to
"dom_inconsistent". */
-void compute_doms(ir_graph *irg) {
+void compute_doms(ir_graph *irg)
+{
ir_graph *rem = current_ir_graph;
int n_blocks, used, i, j;
tmp_dom_info *tdi_list; /* Ein Golf? */
current_ir_graph = rem;
}
-void assure_doms(ir_graph *irg) {
+void assure_doms(ir_graph *irg)
+{
if (get_irg_dom_state(irg) != dom_consistent)
compute_doms(irg);
}
-void free_dom(ir_graph *irg) {
+void free_dom(ir_graph *irg)
+{
/* Update graph state */
assert(get_irg_phase_state(irg) != phase_building);
irg->dom_state = dom_none;
/* Computes the post dominator trees. Sets a flag in irg to "dom_consistent".
If the control flow of the graph is changed this flag must be set to
"dom_inconsistent". */
-void compute_postdoms(ir_graph *irg) {
+void compute_postdoms(ir_graph *irg)
+{
ir_graph *rem = current_ir_graph;
int n_blocks, used, i, j;
tmp_dom_info *tdi_list;
current_ir_graph = rem;
}
-void assure_postdoms(ir_graph *irg) {
+void assure_postdoms(ir_graph *irg)
+{
if (get_irg_postdom_state(irg) != dom_consistent)
compute_postdoms(irg);
}
-void free_postdom(ir_graph *irg) {
+void free_postdom(ir_graph *irg)
+{
/* Update graph state */
assert(get_irg_phase_state(irg) != phase_building);
irg->pdom_state = dom_none;