From d922184dcb5b159b0ff9052d99990dc23b36dc17 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Sun, 8 Feb 2015 10:48:18 +0100
Subject: beam_dead: Optimize Var =:= Var

---
 lib/compiler/src/beam_dead.erl | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lib/compiler/src')

diff --git a/lib/compiler/src/beam_dead.erl b/lib/compiler/src/beam_dead.erl
index 7f28575a65..d00264eb6e 100644
--- a/lib/compiler/src/beam_dead.erl
+++ b/lib/compiler/src/beam_dead.erl
@@ -124,6 +124,8 @@ forward([{label,Lbl}=LblI|[{move,Lit,Dst}|Is1]=Is0], D, Lc, Acc) ->
 	     _ -> Is0		     %Keep move instruction.
 	 end,
     forward(Is, D, Lc, [LblI|Acc]);
+forward([{test,is_eq_exact,_,[Same,Same]}|Is], D, Lc, Acc) ->
+    forward(Is, D, Lc, Acc);
 forward([{test,is_eq_exact,_,[Dst,Src]}=I,
 	 {block,[{set,[Dst],[Src],move}|Bl]}|Is], D, Lc, Acc) ->
     forward([I,{block,Bl}|Is], D, Lc, Acc);
-- 
cgit v1.2.3