From 9d41dad0b3e2ec310375634ec48e677467296b1b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Tue, 28 Jun 2016 10:00:44 +0200
Subject: beam_validator: Correct reporting of y register number

The error would be:

   {multiple_match_contexts,[{x,0},2]}

instead of:

   {multiple_match_contexts,[{x,0},{y,2}]}
---
 lib/compiler/src/beam_validator.erl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/compiler/src')

diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl
index ffd136c6db..6e53f53a20 100644
--- a/lib/compiler/src/beam_validator.erl
+++ b/lib/compiler/src/beam_validator.erl
@@ -909,7 +909,7 @@ all_ms_in_x_regs(Live0, Vst) ->
 
 ms_in_y_regs(Id, #vst{current=#st{y=Ys0}}) ->
     Ys = gb_trees:to_list(Ys0),
-    [Y || {Y,#ms{id=OtherId}} <- Ys, OtherId =:= Id].
+    [{y,Y} || {Y,#ms{id=OtherId}} <- Ys, OtherId =:= Id].
 
 verify_call_match_context(Lbl, Ctx, #vst{ft=Ft}) ->
     case gb_trees:lookup(Lbl, Ft) of
-- 
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