Fixed some typos.

[libfirm] / ir / ir / irop.c

diff --git a/ir/ir/irop.c b/ir/ir/irop.c
index 82d2f14..31adf0c 100644 (file)
--- a/ir/ir/irop.c
+++ b/ir/ir/irop.c
@@ -86,10 +86,11 @@ static void block_copy_attr(ir_graph *irg, const ir_node *old_node,
        new_node->attr.block.block_visited = 0;
        memset(&new_node->attr.block.dom, 0, sizeof(new_node->attr.block.dom));
        memset(&new_node->attr.block.pdom, 0, sizeof(new_node->attr.block.pdom));
-       /* TODO: we should probably create a new entity. But we somehow have to
-        * patch the stuff at the same time */
-       new_node->attr.block.entity            = NULL;
-       new_node->attr.block.phis              = NULL;
+       /* It should be safe to copy the entity here, as it has no back-link to the old block.
+        * It serves just as a label number, so copying a labeled block results in an exact copy.
+        * This is at least what we need for DCE to work. */
+       new_node->attr.block.entity         = old_node->attr.block.entity;
+       new_node->attr.block.phis           = NULL;
        INIT_LIST_HEAD(&new_node->attr.block.succ_head);
 }
 
@@ -165,7 +166,7 @@ ir_op *new_ir_op(unsigned code, const char *name, op_pin_state p,
        res->tag       = 0;
 
        if (ops)
-               memcpy(&res->ops, ops, sizeof(res->ops));
+               res->ops = *ops;
        else /* no given ops, set all operations to NULL */
                memset(&res->ops, 0, sizeof(res->ops));
 
@@ -188,6 +189,14 @@ void free_ir_op(ir_op *code)
        free(code);
 }  /* free_ir_op */
 
+void ir_op_set_fragile_indices(ir_op *op, int fragile_mem_index,
+                               int pn_x_regular, int pn_x_except)
+{
+       op->fragile_mem_index = fragile_mem_index;
+       op->pn_x_regular = pn_x_regular;
+       op->pn_x_except = pn_x_except;
+}
+
 /* Returns the string for the opcode. */
 const char *get_op_name (const ir_op *op)
 {