From d0c538e3dd5072ad0227553f5dd7dcdc2e6c3288 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Thu, 23 Sep 2010 09:35:34 +0200
Subject: Fix compiler crash when constructing zero-size binary segments

Code such as

  foo(A) -> <<A:0>>.

would cause a compiler crash.
---
 lib/compiler/src/v3_codegen.erl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/compiler/src/v3_codegen.erl')

diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl
index 948937c438..77da6c8d00 100644
--- a/lib/compiler/src/v3_codegen.erl
+++ b/lib/compiler/src/v3_codegen.erl
@@ -1523,7 +1523,9 @@ cg_binary_size_1([], Bits, Acc) ->
 	[{1,_}|_] ->
 	    {bs_init_bits,cg_binary_bytes_to_bits(Sizes, [])};
 	[{8,_}|_] ->
-	    {bs_init2,[E || {8,E} <- Sizes]}
+	    {bs_init2,[E || {8,E} <- Sizes]};
+	[] ->
+	    {bs_init_bits,[]}
     end.
 
 cg_binary_size_2({integer,N}, U, _, Next, Bits, Acc) ->
-- 
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