diff options
Diffstat (limited to 'lib/compiler/test')
| -rw-r--r-- | lib/compiler/test/beam_utils_SUITE.erl | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/lib/compiler/test/beam_utils_SUITE.erl b/lib/compiler/test/beam_utils_SUITE.erl index 7686e69b63..b2a5cada3d 100644 --- a/lib/compiler/test/beam_utils_SUITE.erl +++ b/lib/compiler/test/beam_utils_SUITE.erl @@ -25,7 +25,7 @@ is_not_killed/1,is_not_used_at/1, select/1,y_catch/1,otp_8949_b/1,liveopt/1,coverage/1, y_registers/1,user_predef/1,scan_f/1,cafu/1, - receive_label/1,read_size_file_version/1]). + receive_label/1,read_size_file_version/1,not_used/1]). -export([id/1]). suite() -> [{ct_hooks,[ts_install_cth]}]. @@ -51,7 +51,8 @@ groups() -> user_predef, scan_f, cafu, - read_size_file_version + read_size_file_version, + not_used ]}]. init_per_suite(Config) -> @@ -507,5 +508,24 @@ do_read_size_file_version(E) -> {ok,MaxFiles} end. +-record(s, { a, b }). +-record(k, { v }). + +not_used(_Config) -> + [] = not_used_p(any, #s{b=true}, #k{}, ignored), + #k{v=42} = not_used_p(any, #s{b=false}, #k{v=42}, ignored), + #k{v=42} = not_used_p(any, #s{b=bad}, #k{v=42}, ignored), + ok. + +not_used_p(_C, S, K, L) when is_record(K, k) -> + if ((S#s.b) and + (S#s.b)) -> + []; + true -> + id(L), + id(K#k.v), + id(K) + end. + %% The identity function. id(I) -> I. |