some bugifxes for alloca handling

[libfirm] / ir / be / bessadestr.c

diff --git a/ir/be/bessadestr.c b/ir/be/bessadestr.c
index 4d73a0d..aad06dd 100644 (file)
--- a/ir/be/bessadestr.c
+++ b/ir/be/bessadestr.c
@@ -291,8 +291,8 @@ static void set_regs_or_place_dupls_walker(ir_node *bl, void *data) {
                                        pin it
                                */
                                ir_node *perm     = get_Proj_pred(arg);
-                               ir_node *orig_val = get_irn_n(perm, get_Proj_proj(arg));
-                               ir_node *dupl     = be_new_Copy(cls, chordal_env->irg, arg_block, orig_val);
+                               ir_node *dupl     = be_new_Copy(cls, chordal_env->irg, arg_block, arg);
+                               ir_node *ins;
 
                                /* this is commented out because it will fail in case of unknown float */
 #if 0
@@ -310,7 +310,9 @@ static void set_regs_or_place_dupls_walker(ir_node *bl, void *data) {
 
                                set_irn_n(phi, i, dupl);
                                set_reg(dupl, phi_reg);
-                               sched_add_before(perm, dupl);
+                               /* skip the Perm's Projs and insert the copies behind. */
+                               for(ins = sched_next(perm); is_Proj(ins); ins = sched_next(ins));
+                               sched_add_before(ins, dupl);
                                pin_irn(dupl, phi_block);
                                DBG((dbg, LEVEL_1, "      arg is pinned: insert %+F(%s)\n", dupl, get_reg(dupl)->name));
                        } else {