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detect fully/partly redundant by inspection node index ...
[libfirm]
/
ir
/
opt
/
tailrec.c
diff --git
a/ir/opt/tailrec.c
b/ir/opt/tailrec.c
index
a5e4938
..
681a3f8
100644
(file)
--- a/
ir/opt/tailrec.c
+++ b/
ir/opt/tailrec.c
@@
-263,10
+263,7
@@
static void do_opt_tail_rec(ir_graph *irg, tr_env *env) {
* ok, we are here, so we have build and collected all needed Phi's
* now exchange all Projs into links to Phi
*/
* ok, we are here, so we have build and collected all needed Phi's
* now exchange all Projs into links to Phi
*/
- for (p = data.proj_m; p; p = n) {
- n = get_irn_link(p);
- exchange(p, phis[0]);
- }
+ exchange(data.proj_m, phis[0]);
for (p = data.proj_data; p; p = n) {
long proj = get_Proj_proj(p);
for (p = data.proj_data; p; p = n) {
long proj = get_Proj_proj(p);
@@
-492,7
+489,7
@@
static tail_rec_variants find_variant(ir_node *irn, ir_node *call) {
return TR_BAD;
case iro_Sub:
return TR_BAD;
case iro_Sub:
- /* try additive, but return value mut be left */
+ /* try additive, but return value mu
s
t be left */
a = get_Sub_left(irn);
if (get_irn_MacroBlock(a) != get_irn_MacroBlock(call)) {
/* we are outside, ignore */
a = get_Sub_left(irn);
if (get_irn_MacroBlock(a) != get_irn_MacroBlock(call)) {
/* we are outside, ignore */
@@
-722,8
+719,11
@@
void opt_tail_recursion(void) {
current_ir_graph = irg;
current_ir_graph = irg;
+ ir_reserve_resources(irg, IR_RESOURCE_IRN_LINK);
if (opt_tail_rec_irg(irg))
++n_opt_applications;
if (opt_tail_rec_irg(irg))
++n_opt_applications;
+
+ ir_free_resources(irg, IR_RESOURCE_IRN_LINK);
}
DB((dbg, LEVEL_1, "Performed tail recursion for %d of %d graphs\n",
}
DB((dbg, LEVEL_1, "Performed tail recursion for %d of %d graphs\n",