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-rw-r--r--erts/emulator/test/beam_SUITE.erl77
1 files changed, 38 insertions, 39 deletions
diff --git a/erts/emulator/test/beam_SUITE.erl b/erts/emulator/test/beam_SUITE.erl
index f61ab431e9..ca37ab68a7 100644
--- a/erts/emulator/test/beam_SUITE.erl
+++ b/erts/emulator/test/beam_SUITE.erl
@@ -29,6 +29,7 @@
-export([applied/2,swap_temp_applied/1]).
-include_lib("common_test/include/ct.hrl").
+-include_lib("syntax_tools/include/merl.hrl").
suite() -> [{ct_hooks,[ts_install_cth]}].
@@ -93,48 +94,46 @@ applied(Starter, N) ->
apply_last_bif(Config) when is_list(Config) ->
apply(erlang, abs, [1]).
-%% Test three high register numbers in a put_list instruction
-%% (to test whether packing works properly).
+%% Test whether packing works properly.
packed_registers(Config) when is_list(Config) ->
- PrivDir = proplists:get_value(priv_dir, Config),
- Mod = packed_regs,
- Name = filename:join(PrivDir, atom_to_list(Mod) ++ ".erl"),
-
- %% Generate a module which generates a list of tuples.
- %% put_list(A) -> [{A, 600}, {A, 999}, ... {A, 0}].
- Code = gen_packed_regs(600, ["-module("++atom_to_list(Mod)++").\n",
- "-export([put_list/1]).\n",
- "put_list(A) ->\n["]),
- ok = file:write_file(Name, Code),
-
- %% Compile the module.
- io:format("Compiling: ~s\n", [Name]),
- CompRc = compile:file(Name, [{outdir, PrivDir}, report]),
- io:format("Result: ~p\n",[CompRc]),
- {ok, Mod} = CompRc,
-
- %% Load it.
- io:format("Loading...\n",[]),
- LoadRc = code:load_abs(filename:join(PrivDir, atom_to_list(Mod))),
- {module,_Module} = LoadRc,
-
- %% Call it and verify result.
- Term = {a, b},
- L = Mod:put_list(Term),
- verify_packed_regs(L, Term, 600),
+ Mod = ?FUNCTION_NAME,
+
+ %% Generate scrambled sequence.
+ Seq0 = [{erlang:phash2(I),I} || I <- lists:seq(0, 260)],
+ Seq = [I || {_,I} <- lists:sort(Seq0)],
+
+ %% Generate a test modules that uses get_list/3 instructions
+ %% with high register numbers.
+ S0 = [begin
+ VarName = list_to_atom("V"++integer_to_list(V)),
+ {merl:var(VarName),V}
+ end || V <- Seq],
+ Vars = [V || {V,_} <- S0],
+ NewVars = [begin
+ VarName = list_to_atom("M"++integer_to_list(V)),
+ merl:var(VarName)
+ end || V <- Seq],
+ S = [?Q("_@Var = id(_@Value@)") || {Var,Value} <- S0],
+ Code = ?Q(["-module('@Mod@').\n"
+ "-export([f/0]).\n"
+ "f() ->\n"
+ "_@S,\n"
+ "_ = id(0),\n"
+ "L = [_@Vars],\n"
+ "_ = id(1),\n"
+ "[_@NewVars] = L,\n" %Test get_list/3.
+ "_ = id(2),\n"
+ "id([_@Vars,_@NewVars]).\n"
+ "id(I) -> I.\n"]),
+ merl:compile_and_load(Code),
+ CombinedSeq = Seq ++ Seq,
+ CombinedSeq = Mod:f(),
+
+ %% Clean up.
+ true = code:delete(Mod),
+ false = code:purge(Mod),
ok.
-gen_packed_regs(0, Acc) ->
- [Acc|"{A,0}].\n"];
-gen_packed_regs(N, Acc) ->
- gen_packed_regs(N-1, [Acc,"{A,",integer_to_list(N)|"},\n"]).
-
-verify_packed_regs([], _, -1) -> ok;
-verify_packed_regs([{Term, N}| T], Term, N) ->
- verify_packed_regs(T, Term, N-1);
-verify_packed_regs(L, Term, N) ->
- ct:fail("Expected [{~p, ~p}|T]; got\n~p\n", [Term, N, L]).
-
buildo_mucho(Config) when is_list(Config) ->
buildo_mucho_1(),
ok.