/* Returns the pos`th loop_node-child *
* TODO: This method isn`t very efficient ! *
- * Returns NULL if there isnt`t a pos`th loop_node */
+ * Returns NULL if there isn`t a pos`th loop_node */
ir_loop *get_loop_son (ir_loop *loop, int pos) {
int child_nr = 0, loop_nr = -1;
/* Returns the pos`th ir_node-child *
* TODO: This method isn`t very efficient ! *
- * Returns NULL if there isnt`t a pos`th ir_node */
+ * Returns NULL if there isn`t a pos`th ir_node */
ir_node *get_loop_node (ir_loop *loop, int pos) {
int child_nr, node_nr = -1;
Returns the pos`th loop element.
This may be a loop_node or a ir_node. The caller of this function has
to check the *(loop_element.kind) field for "k_ir_node" or "k_ir_loop"
- and then select the apropriate "loop_element.node" or "loop_element.son".
+ and then select the appropriate "loop_element.node" or "loop_element.son".
*/
loop_element get_loop_element (ir_loop *loop, int pos) {
#endif
}
-int is_ir_loop(const void *thing) {
- return (get_kind(thing) == k_ir_loop);
+int (is_ir_loop)(const void *thing) {
+ return _is_ir_loop(thing);
}
/* The outermost loop is remarked in the surrounding graph. */
-void set_irg_loop(ir_graph *irg, ir_loop *loop) {
- assert(irg);
- irg->loop = loop;
+void (set_irg_loop)(ir_graph *irg, ir_loop *loop) {
+ _set_irg_loop(irg, loop);
}
-ir_loop *get_irg_loop(ir_graph *irg) {
- assert(irg);
- return irg->loop;
+
+/* Returns the root loop info (if exists) for an irg. */
+ir_loop *(get_irg_loop)(ir_graph *irg) {
+ return _get_irg_loop(irg);
}
assert(pred);
if (is_backedge(n, i) || !irn_is_in_stack(pred)) continue;
if (get_irn_dfn(pred) >= limit && (min == -1 || get_irn_dfn(pred) < min)) {
- index = i;
- min = get_irn_dfn(pred);
+ index = i;
+ min = get_irn_dfn(pred);
}
}
}
ir_node *pred = get_irn_n(n, i);
if (is_backedge (n, i) || !irn_is_in_stack(pred)) continue;
if (get_irn_dfn(pred) > max) {
- index = i;
- max = get_irn_dfn(pred);
+ index = i;
+ max = get_irn_dfn(pred);
}
}
}
m = stack[i];
if (is_head (m, n)) {
- res_index = smallest_dfn_pred (m, get_irn_dfn(m) + 1);
- if (res_index == -2) /* no smallest dfn pred found. */
- res_index = largest_dfn_pred (m);
-
- if ((m == n) && (res_index == -2)) { /* dont walk past loop head. */
- i = -1;
- }
- break;
+ res_index = smallest_dfn_pred (m, get_irn_dfn(m) + 1);
+ if (res_index == -2) /* no smallest dfn pred found. */
+ res_index = largest_dfn_pred (m);
+
+ if ((m == n) && (res_index == -2)) { /* dont walk past loop head. */
+ i = -1;
+ }
+ break;
}
/* We should not walk past our selves on the stack: The upcoming nodes
- are not in this loop. We assume a loop not reachable from Start. */
- if (m == n) {
- i = -1;
- break;
+ are not in this loop. We assume a loop not reachable from Start. */
+ if (m == n) {
+ i = -1;
+ break;
}
}
if (i < 0) {
/* A dead loop not reachable from Start. */
for (i = tos-2; i >= 0; --i) {
- m = stack[i];
- if (is_endless_head (m, n)) {
- res_index = smallest_dfn_pred (m, get_irn_dfn(m) + 1);
- if (res_index == -2) /* no smallest dfn pred found. */
- res_index = largest_dfn_pred (m);
- break;
- }
- if (m == n) { break; } /* It's not an unreachable loop, either. */
+ m = stack[i];
+ if (is_endless_head (m, n)) {
+ res_index = smallest_dfn_pred (m, get_irn_dfn(m) + 1);
+ if (res_index == -2) /* no smallest dfn pred found. */
+ res_index = largest_dfn_pred (m);
+ break;
+ }
+ if (m == n) { break; } /* It's not an unreachable loop, either. */
}
//assert(0 && "no head found on stack");
}
#if EXPERIMENTAL_LOOP_TREE
/* ----------------------------------------------------------------
- AS: This is experimantal code to build loop trees suitable for
+ AS: This is experimental code to build loop trees suitable for
the heap analysis. Does not work correctly right now... :-(
int i, j;
assert(is_Block(start_block));
for(i = tos - 1; i >= 0; --i)
- {
- DDMN(stack[i]);
- if(get_irn_op(stack[i]) == op_Proj && get_irn_mode(stack[i]) == mode_X &&
- get_irn_op(get_irn_n(stack[i], 0)) == op_EndReg)
- {
- printf("FOUND PROJ!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
- ir_node *end_projx = stack[i];
-
- int arity = get_irn_arity(start_block);
- for(j = 0; j < arity; j++)
+ {
+ DDMN(stack[i]);
+ if(get_irn_op(stack[i]) == op_Proj && get_irn_mode(stack[i]) == mode_X &&
+ get_irn_op(get_irn_n(stack[i], 0)) == op_EndReg)
+ {
+ printf("FOUND PROJ!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
+ ir_node *end_projx = stack[i];
+
+ int arity = get_irn_arity(start_block);
+ for(j = 0; j < arity; j++)
{
ir_node *begin_projx = get_Block_cfgpred(get_irg_start_block(get_irn_irg(end_projx)),
get_Proj_proj(end_projx));
DDMN(begin_projx);
if(get_irn_n(start_block, j) == begin_projx)
- {
- printf("FOUND IT!!!!!!!!!!!!!!!!!!\n");
- return(j);
- }
+ {
+ printf("FOUND IT!!!!!!!!!!!!!!!!!!\n");
+ return(j);
+ }
}
- }
- }
+ }
+ }
return(-1);
}
/* if ((!m) || (get_irn_op(m) == op_Unknown)) continue; */
scc (m);
if (irn_is_in_stack(m)) {
- /* Uplink of m is smaller if n->m is a backedge.
- Propagate the uplink to mark the loop. */
- if (get_irn_uplink(m) < get_irn_uplink(n))
- set_irn_uplink(n, get_irn_uplink(m));
+ /* Uplink of m is smaller if n->m is a backedge.
+ Propagate the uplink to mark the loop. */
+ if (get_irn_uplink(m) < get_irn_uplink(n))
+ set_irn_uplink(n, get_irn_uplink(m));
}
}
}
ir_loop *l;
int close;
if ((get_loop_n_elements(current_loop) > 0) || (is_outermost_loop(current_loop))) {
- l = new_loop();
- close = 1;
+ l = new_loop();
+ close = 1;
} else {
- l = current_loop;
- close = 0;
+ l = current_loop;
+ close = 0;
}
#else
ir_loop *l = new_loop();
/* if ((!m) || (get_irn_op(m) == op_Unknown)) continue; */
my_scc (m);
if (irn_is_in_stack(m)) {
- /* Uplink of m is smaller if n->m is a backedge.
- Propagate the uplink to mark the loop. */
- if (get_irn_uplink(m) < get_irn_uplink(n))
- set_irn_uplink(n, get_irn_uplink(m));
+ /* Uplink of m is smaller if n->m is a backedge.
+ Propagate the uplink to mark the loop. */
+ if (get_irn_uplink(m) < get_irn_uplink(n))
+ set_irn_uplink(n, get_irn_uplink(m));
}
}
}
ir_loop *l;
int close;
if ((get_loop_n_elements(current_loop) > 0) || (is_outermost_loop(current_loop))) {
- l = new_loop();
- close = 1;
+ l = new_loop();
+ close = 1;
} else {
- l = current_loop;
- close = 0;
+ l = current_loop;
+ close = 0;
}
#else
ir_loop *l = new_loop();
projects / libfirm / blobdiff