From aaefdd4fc60c94dffe1512324a54a7177211e932 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= <egil@erlang.org>
Date: Thu, 14 May 2015 13:44:19 +0200
Subject: v3_codegen: Use Maps to map local functions

---
 lib/compiler/src/v3_codegen.erl | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

(limited to 'lib/compiler')

diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl
index 0b2119f157..c9b1a45cfc 100644
--- a/lib/compiler/src/v3_codegen.erl
+++ b/lib/compiler/src/v3_codegen.erl
@@ -57,8 +57,7 @@
 	     break,				%Break label
 	     recv,				%Receive label
 	     is_top_block,			%Boolean: top block or not
-	     functable=gb_trees:empty(),	%Gb tree of local functions:
-						% {{Name,Arity},Label}
+	     functable=#{},	                %Map of local functions: {Name,Arity}=>Label
 	     in_catch=false,			%Inside a catch or not.
 	     need_frame,			%Need a stack frame.
 	     ultimate_failure			%Label for ultimate match failure.
@@ -1261,13 +1260,12 @@ enter_line(_, _, _) ->
 local_func_label(Name, Arity, St) ->
     local_func_label({Name,Arity}, St).
 
-local_func_label(Key, #cg{functable=Tab}=St0) ->
-    case gb_trees:lookup(Key, Tab) of
-	{value,Label} ->
-	    {Label,St0};
-	none ->
+local_func_label(Key, #cg{functable=Map}=St0) ->
+    case Map of
+        #{Key := Label} -> {Label,St0};
+        _ ->
   	    {Label,St} = new_label(St0),
-	    {Label,St#cg{functable=gb_trees:insert(Key, Label, Tab)}}
+	    {Label,St#cg{functable=Map#{Key => Label}}}
     end.
 
 %% need_stack_frame(State) -> State'
-- 
cgit v1.2.3