From f39e0b6bbc5f5d9f6a55b87847bcad7707309883 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Thu, 22 Apr 2010 13:37:18 +0200
Subject: compiler test: Test optimization of receive statements

We don't attempt to run the generated code, but use beam_disasm
and check for the presence or absence (as appropriate) of the
recv_mark/1 and recv_set/1 instructions.
---
 .../test/receive_SUITE_data/ref_opt/yes_5.erl      | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 lib/compiler/test/receive_SUITE_data/ref_opt/yes_5.erl

(limited to 'lib/compiler/test/receive_SUITE_data/ref_opt/yes_5.erl')

diff --git a/lib/compiler/test/receive_SUITE_data/ref_opt/yes_5.erl b/lib/compiler/test/receive_SUITE_data/ref_opt/yes_5.erl
new file mode 100644
index 0000000000..3f02fba6a6
--- /dev/null
+++ b/lib/compiler/test/receive_SUITE_data/ref_opt/yes_5.erl
@@ -0,0 +1,46 @@
+-module(yes_5).
+-compile(export_all).
+
+?MODULE() ->
+    ok.
+
+do_call(Process, Label, Request, Timeout) ->
+    Node = case Process of
+	       {_S, N} when is_atom(N) ->
+		   N;
+	       _ when is_pid(Process) ->
+		   node(Process)
+	   end,
+    try erlang:monitor(process, Process) of
+	Mref ->
+	    catch erlang:send(Process, {Label, {self(), Mref}, Request},
+			      [noconnect]),
+	    receive
+		{Mref, Reply} ->
+		    erlang:demonitor(Mref, [flush]),
+		    {ok, Reply};
+		{'DOWN', Mref, _, _, noconnection} ->
+		    exit({nodedown, Node});
+		{'DOWN', Mref, _, _, Reason} ->
+		    exit(Reason)
+	    after Timeout ->
+		    erlang:demonitor(Mref),
+		    receive
+			{'DOWN', Mref, _, _, _} -> true
+		    after 0 -> true
+		    end,
+		    exit(timeout)
+	    end
+    catch
+	error:_ ->
+	    monitor_node(Node, true),
+	    receive
+		{nodedown, Node} ->
+		    monitor_node(Node, false),
+		    exit({nodedown, Node})
+	    after 0 ->
+		    Tag = make_ref(),
+		    Process ! {Label, {self(), Tag}, Request},
+		    ?MODULE:wait_resp(Node, Tag, Timeout)
+	    end
+    end.
-- 
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