Support dtor sections on Mach-O.

[libfirm] / ir / ir / irnode.c

diff --git a/ir/ir/irnode.c b/ir/ir/irnode.c
index 6d0ffee..c61f32a 100644 (file)
--- a/ir/ir/irnode.c
+++ b/ir/ir/irnode.c
@@ -233,7 +233,7 @@ ir_node **get_irn_in(const ir_node *node) {
 void set_irn_in(ir_node *node, int arity, ir_node **in) {
        int i;
        ir_node *** pOld_in;
-       ir_graph *irg = current_ir_graph;
+       ir_graph *irg = get_irn_irg(node);
 
        assert(node);
 #ifdef INTERPROCEDURAL_VIEW
@@ -818,10 +818,11 @@ ir_entity *create_Block_entity(ir_node *block) {
 
                glob = get_glob_type();
                entity = new_entity(glob, id_unique("block_%u"), get_code_type());
+               set_entity_visibility(entity, ir_visibility_local);
+               set_entity_linkage(entity, IR_LINKAGE_CONSTANT);
                nr = get_irp_next_label_nr();
                set_entity_label(entity, nr);
                set_entity_compiler_generated(entity, 1);
-               set_entity_allocation(entity, allocation_static);
 
                block->attr.block.entity = entity;
        }
@@ -2782,6 +2783,10 @@ int (is_irn_machine_user)(const ir_node *node, unsigned n) {
        return _is_irn_machine_user(node, n);
 }
 
+/* Returns non-zero for nodes that are CSE neutral to its users. */
+int (is_irn_cse_neutral)(const ir_node *node) {
+       return _is_irn_cse_neutral(node);
+}
 
 /* Gets the string representation of the jump prediction .*/
 const char *get_cond_jmp_predicate_name(cond_jmp_predicate pred) {
@@ -2922,7 +2927,11 @@ unsigned firm_default_hash(const ir_node *node) {
 
        /* consider all in nodes... except the block if not a control flow. */
        for (i = is_cfop(node) ? -1 : 0;  i < irn_arity;  ++i) {
-               h = 9*h + HASH_PTR(get_irn_intra_n(node, i));
+               ir_node *pred = get_irn_intra_n(node, i);
+               if (is_irn_cse_neutral(pred))
+                       h *= 9;
+               else
+                       h = 9*h + HASH_PTR(pred);
        }
 
        /* ...mode,... */