core_SUITE: Cover v3_kernel:build_match/2

2 files changed, 37 insertions, 16 deletions

diff --git a/lib/compiler/test/core_SUITE.erl b/lib/compiler/test/core_SUITE.erl
index 37d220518e..0a52dcdc4a 100644
--- a/lib/compiler/test/core_SUITE.erl
+++ b/lib/compiler/test/core_SUITE.erl
@@ -22,7 +22,8 @@
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2,
 	 dehydrated_itracer/1,nested_tries/1,
-	 make_effect_seq/1,eval_is_boolean/1]).
+	 make_effect_seq/1,eval_is_boolean/1,
+	 unsafe_case/1]).
 
 -include_lib("test_server/include/test_server.hrl").
 
@@ -43,7 +44,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 all() -> 
     test_lib:recompile(?MODULE),
     [dehydrated_itracer,nested_tries,make_effect_seq,
-     eval_is_boolean].
+     eval_is_boolean,unsafe_case].
 
 groups() -> 
     [].
@@ -65,19 +66,14 @@ end_per_group(_GroupName, Config) ->
 ?comp(nested_tries).
 ?comp(make_effect_seq).
 ?comp(eval_is_boolean).
+?comp(unsafe_case).
 
 try_it(Mod, Conf) ->
-    ?line Src = filename:join(?config(data_dir, Conf), atom_to_list(Mod)),
-    ?line Out = ?config(priv_dir,Conf),
-    ?line io:format("Compiling: ~s\n", [Src]),
-    ?line CompRc0 = compile:file(Src, [from_core,{outdir,Out},report,time]),
-    ?line io:format("Result: ~p\n",[CompRc0]),
-    ?line {ok,Mod} = CompRc0,
-
-    ?line {module,Mod} = code:load_abs(filename:join(Out, Mod)),
-    ?line ok = Mod:Mod(),
-    ok.
-
-
-
-
+    Src = filename:join(?config(data_dir, Conf), atom_to_list(Mod)),
+    compile_and_load(Src, []),
+    compile_and_load(Src, [no_copt]).
+
+compile_and_load(Src, Opts) ->
+    {ok,Mod,Bin} = compile:file(Src, [from_core,report,time,binary|Opts]),
+    {module,Mod} = code:load_binary(Mod, Mod, Bin),
+    ok = Mod:Mod().
diff --git a/lib/compiler/test/core_SUITE_data/unsafe_case.core b/lib/compiler/test/core_SUITE_data/unsafe_case.core
new file mode 100644
index 0000000000..84cb2c310a
--- /dev/null
+++ b/lib/compiler/test/core_SUITE_data/unsafe_case.core
@@ -0,0 +1,25 @@
+module 'unsafe_case' ['unsafe_case'/0]
+    attributes []
+'unsafe_case'/0 =
+    fun () ->
+	case apply 't'/1
+		 (42) of
+	  <{'ok',42}> when 'true' ->
+	      'ok'
+	  ( <_cor0> when 'true' ->
+		primop 'match_fail'
+		    ({'badmatch',_cor0})
+	    -| ['compiler_generated'] )
+	end
+'t'/1 =
+    fun (_cor0) ->
+	case _cor0 of
+	  <X>
+	      when call 'erlang':'>'
+		    (_cor0,
+		     0) ->
+	      {'ok',X}
+	  %% The default case is intentionally missing
+	  %% to cover v3_kernel:build_match/2.
+	end
+end