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-rw-r--r--lib/compiler/test/core_fold_SUITE.erl38
1 files changed, 36 insertions, 2 deletions
diff --git a/lib/compiler/test/core_fold_SUITE.erl b/lib/compiler/test/core_fold_SUITE.erl
index 262967d03d..4fd1f84569 100644
--- a/lib/compiler/test/core_fold_SUITE.erl
+++ b/lib/compiler/test/core_fold_SUITE.erl
@@ -27,7 +27,7 @@
multiple_aliases/1,redundant_boolean_clauses/1,
mixed_matching_clauses/1,unnecessary_building/1,
no_no_file/1,configuration/1,supplies/1,
- redundant_stack_frame/1]).
+ redundant_stack_frame/1,export_from_case/1]).
-export([foo/0,foo/1,foo/2,foo/3]).
@@ -47,7 +47,7 @@ groups() ->
multiple_aliases,redundant_boolean_clauses,
mixed_matching_clauses,unnecessary_building,
no_no_file,configuration,supplies,
- redundant_stack_frame]}].
+ redundant_stack_frame,export_from_case]}].
init_per_suite(Config) ->
@@ -551,4 +551,38 @@ do_redundant_stack_frame(Map) ->
end,
{X, Y}.
+%% Cover some clauses in sys_core_fold:remove_first_value/2.
+
+-record(export_from_case, {val}).
+
+export_from_case(_Config) ->
+ a = export_from_case_1(true),
+ b = export_from_case_1(false),
+
+ R = #export_from_case{val=0},
+ {ok,R} = export_from_case_2(false, R),
+ {ok,#export_from_case{val=42}} = export_from_case_2(true, R),
+
+ ok.
+
+export_from_case_1(Bool) ->
+ case Bool of
+ true ->
+ id(42),
+ Result = a;
+ false ->
+ Result = b
+ end,
+ id(Result).
+
+export_from_case_2(Bool, Rec) ->
+ case Bool of
+ false ->
+ Result = Rec;
+ true ->
+ Result = Rec#export_from_case{val=42}
+ end,
+ {ok,Result}.
+
+
id(I) -> I.