return: Simply use set_irn_in() instead of replacing the end block by a new one.

140e0661 · Christoph Mallon · 43d387ca · 140e0661
Commit 140e0661 authored Feb 07, 2016 by Christoph Mallon
--- a/ir/opt/return.c
+++ b/ir/opt/return.c
@@ -315,7 +315,7 @@ void normalize_n_returns(ir_graph *irg)
 		endbl_in[i] = final;
 	}
-	exchange(endbl, new_r_Block(irg, n_finals, endbl_in));
+	set_irn_in(endbl, n_finals, endbl_in);
 	ir_free_resources(irg, IR_RESOURCE_IRN_LINK);
 	/* Invalidate analysis information: