added ir/opt include

[libfirm] / ir / be / bechordal.c

diff --git a/ir/be/bechordal.c b/ir/be/bechordal.c
index ec0b43d..5459ad0 100644 (file)
--- a/ir/be/bechordal.c
+++ b/ir/be/bechordal.c
@@ -230,26 +230,30 @@ static ir_node *prepare_constr_insn(be_chordal_env_t *env, ir_node *irn)
        be_insn_t *insn;
        int i, j;
 
-       for(i = get_irn_arity(irn) - 1; i >= 0; --i) {
+       for (i = get_irn_arity(irn) - 1; i >= 0; --i) {
                ir_node *op = get_irn_n(irn, i);
 
                const arch_register_t *reg;
                arch_register_req_t req;
 
-               reg = arch_get_irn_register(aenv, op);
+               if (arch_get_irn_reg_class(aenv, irn, i) == env->cls) {
+                       reg = arch_get_irn_register(aenv, op);
 
-               if(reg && arch_register_type_is(reg, ignore)) {
-                       arch_get_register_req(aenv, &req, irn, i);
-                       if(arch_register_req_is(&req, limited)) {
-                               bitset_clear_all(tmp);
-                               req.limited(req.limited_env, tmp);
-                               if(!bitset_is_set(tmp, reg->index)) {
-                                       ir_node *copy = be_new_Copy(env->cls, env->irg, bl, op);
-                                       be_stat_ev("constr_copy", 1);
+                       if (reg && arch_register_type_is(reg, ignore)) {
+                               arch_get_register_req(aenv, &req, irn, i);
+
+                               if (arch_register_req_is(&req, limited)) {
+                                       bitset_clear_all(tmp);
+                                       req.limited(req.limited_env, tmp);
 
-                                       sched_add_before(irn, copy);
-                                       set_irn_n(irn, i, copy);
-                                       DBG((env->dbg, LEVEL_3, "inserting ignore arg copy %+F for %+F pos %d\n", copy, irn, i));
+                                       if (! bitset_is_set(tmp, reg->index)) {
+                                               ir_node *copy = be_new_Copy(env->cls, env->irg, bl, op);
+                                               be_stat_ev("constr_copy", 1);
+
+                                               sched_add_before(irn, copy);
+                                               set_irn_n(irn, i, copy);
+                                               DBG((env->dbg, LEVEL_3, "inserting ignore arg copy %+F for %+F pos %d\n", copy, irn, i));
+                                       }
                                }
                        }
                }