diff options
Diffstat (limited to 'lib/compiler/test')
| -rw-r--r-- | lib/compiler/test/beam_type_SUITE.erl | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/lib/compiler/test/beam_type_SUITE.erl b/lib/compiler/test/beam_type_SUITE.erl index 86146c614f..fe856b12b6 100644 --- a/lib/compiler/test/beam_type_SUITE.erl +++ b/lib/compiler/test/beam_type_SUITE.erl @@ -22,7 +22,8 @@ -export([all/0,suite/0,groups/0,init_per_suite/1,end_per_suite/1, init_per_group/2,end_per_group/2, integers/1,coverage/1,booleans/1,setelement/1,cons/1, - tuple/1,record_float/1,binary_float/1,float_compare/1]). + tuple/1,record_float/1,binary_float/1,float_compare/1, + arity_checks/1]). suite() -> [{ct_hooks,[ts_install_cth]}]. @@ -40,7 +41,8 @@ groups() -> tuple, record_float, binary_float, - float_compare + float_compare, + arity_checks ]}]. init_per_suite(Config) -> @@ -171,6 +173,31 @@ do_float_compare(X) -> _T -> Y > 0 end. +arity_checks(_Config) -> + %% ERL-549: an unsafe optimization removed a test_arity instruction, + %% causing the following to return 'broken' instead of 'ok'. + ok = do_record_arity_check({rgb, 255, 255, 255, 1}), + ok = do_tuple_arity_check({255, 255, 255, 1}). + +-record(rgb, {r = 255, g = 255, b = 255}). + +do_record_arity_check(RGB) when + (element(2, RGB) >= 0), (element(2, RGB) =< 255), + (element(3, RGB) >= 0), (element(3, RGB) =< 255), + (element(4, RGB) >= 0), (element(4, RGB) =< 255) -> + if + element(1, RGB) =:= rgb, is_record(RGB, rgb) -> broken; + true -> ok + end. + +do_tuple_arity_check(RGB) when is_tuple(RGB), + (element(1, RGB) >= 0), (element(1, RGB) =< 255), + (element(2, RGB) >= 0), (element(2, RGB) =< 255), + (element(3, RGB) >= 0), (element(3, RGB) =< 255) -> + case RGB of + {255, _, _} -> broken; + _ -> ok + end. id(I) -> I. |