From bf9ccd82c744f44f2ca2c07e23b6784cd29c94e3 Mon Sep 17 00:00:00 2001
From: Kostis Sagonas <kostis@cs.ntua.gr>
Date: Tue, 11 May 2010 10:12:08 +0000
Subject: hipe_icode: Suppress a dialyzer warning
---
lib/hipe/icode/hipe_icode.erl | 32 ++++++++++++--------------------
1 file changed, 12 insertions(+), 20 deletions(-)
(limited to 'lib')
diff --git a/lib/hipe/icode/hipe_icode.erl b/lib/hipe/icode/hipe_icode.erl
index a4614d7237..3e211bf385 100644
--- a/lib/hipe/icode/hipe_icode.erl
+++ b/lib/hipe/icode/hipe_icode.erl
@@ -1,20 +1,20 @@
%% -*- erlang-indent-level: 2 -*-
%%
%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2001-2009. All Rights Reserved.
-%%
+%%
+%% Copyright Ericsson AB 2001-2010. All Rights Reserved.
+%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
-%%
+%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
-%%
+%%
%% %CopyrightEnd%
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1578,27 +1578,19 @@ redirect_jmp(Jmp, ToOld, ToNew) ->
_ -> Jmp
end
end,
- simplify_branch(NewI).
-
-%%
-%% @doc Turns a branch into a goto if it has only one successor and it
-%% is safe to do so.
-%%
-
--spec simplify_branch(icode_instr()) -> icode_instr().
-
-simplify_branch(I) ->
- case ordsets:from_list(successors(I)) of
+ %% Turn a branch into a goto if it has only one successor and it is
+ %% safe to do so.
+ case ordsets:from_list(successors(NewI)) of
[Label] ->
Goto = mk_goto(Label),
- case I of
- #icode_type{} -> Goto;
+ case NewI of
#icode_if{} -> Goto;
#icode_switch_tuple_arity{} -> Goto;
#icode_switch_val{} -> Goto;
- _ -> I
+ #icode_type{} -> Goto;
+ _ -> NewI
end;
- _ -> I
+ _ -> NewI
end.
%%
--
cgit v1.2.3