diff options
Diffstat (limited to 'lib/compiler/test/match_SUITE.erl')
| -rw-r--r-- | lib/compiler/test/match_SUITE.erl | 74 |
1 files changed, 72 insertions, 2 deletions
diff --git a/lib/compiler/test/match_SUITE.erl b/lib/compiler/test/match_SUITE.erl index 52b2da05f7..35d2e8e91a 100644 --- a/lib/compiler/test/match_SUITE.erl +++ b/lib/compiler/test/match_SUITE.erl @@ -23,7 +23,7 @@ init_per_group/2,end_per_group/2, pmatch/1,mixed/1,aliases/1,non_matching_aliases/1, match_in_call/1,untuplify/1,shortcut_boolean/1,letify_guard/1, - selectify/1,underscore/1,match_map/1,map_vars_used/1, + selectify/1,deselectify/1,underscore/1,match_map/1,map_vars_used/1, coverage/1,grab_bag/1,literal_binary/1]). -include_lib("common_test/include/ct.hrl"). @@ -38,7 +38,7 @@ groups() -> [{p,[parallel], [pmatch,mixed,aliases,non_matching_aliases, match_in_call,untuplify, - shortcut_boolean,letify_guard,selectify, + shortcut_boolean,letify_guard,selectify,deselectify, underscore,match_map,map_vars_used,coverage, grab_bag,literal_binary]}]. @@ -466,6 +466,66 @@ sel_same_value2(V) when V =:= 42; V =:= 43 -> sel_same_value2(_) -> error. +%% Test deconstruction of select_val instructions in beam_peep into +%% regular tests with just one possible value left. Hitting proper cases +%% in beam_peep relies on unification of labels by beam_jump. + +deselectify(Config) when is_list(Config) -> + one_or_other = desel_tuple_arity({1}), + two = desel_tuple_arity({1,1}), + one_or_other = desel_tuple_arity({1,1,1}), + + one_or_other = dsel_integer(1), + two = dsel_integer(2), + one_or_other = dsel_integer(3), + + one_or_other = dsel_integer_typecheck(1), + two = dsel_integer_typecheck(2), + one_or_other = dsel_integer_typecheck(3), + + one_or_other = dsel_atom(one), + two = dsel_atom(two), + one_or_other = dsel_atom(three), + + one_or_other = dsel_atom_typecheck(one), + two = dsel_atom_typecheck(two), + one_or_other = dsel_atom_typecheck(three). + +desel_tuple_arity(Tuple) when is_tuple(Tuple) -> + case Tuple of + {_} -> one_or_other; + {_,_} -> two; + _ -> one_or_other + end. + +dsel_integer(Val) -> + case Val of + 1 -> one_or_other; + 2 -> two; + _ -> one_or_other + end. + +dsel_integer_typecheck(Val) when is_integer(Val) -> + case Val of + 1 -> one_or_other; + 2 -> two; + _ -> one_or_other + end. + +dsel_atom(Val) -> + case Val of + one -> one_or_other; + two -> two; + _ -> one_or_other + end. + +dsel_atom_typecheck(Val) when is_atom(Val) -> + case Val of + one -> one_or_other; + two -> two; + _ -> one_or_other + end. + underscore(Config) when is_list(Config) -> case Config of [] -> @@ -557,6 +617,10 @@ grab_bag(_Config) -> {bad,16#555555555555555555555555555555555555555555555555555}], ok = grab_bag_remove_failure(L, unit, 0), + {42,<<43,44>>} = grab_bag_single_valued(<<42,43,44>>), + empty_list = grab_bag_single_valued([]), + empty_tuple = grab_bag_single_valued({}), + ok. grab_bag_remove_failure([], _Unit, _MaxFailure) -> @@ -574,6 +638,12 @@ grab_bag_remove_failure([{stretch,_,Mi}=Stretch | Specs], Unit, _MaxFailure) -> ok end. +%% Cover a line v3_kernel that places binary matching first. +grab_bag_single_valued(<<H,T/bytes>>) -> {H,T}; +grab_bag_single_valued([]) -> empty_list; +grab_bag_single_valued({}) -> empty_tuple. + + %% Regression in 19.0, reported by Alexei Sholik literal_binary(_Config) -> 3 = literal_binary_match(bar, <<"y">>), |