diff options
Diffstat (limited to 'lib/compiler/test')
-rw-r--r-- | lib/compiler/test/beam_type_SUITE.erl | 25 | ||||
-rw-r--r-- | lib/compiler/test/receive_SUITE.erl | 26 |
2 files changed, 47 insertions, 4 deletions
diff --git a/lib/compiler/test/beam_type_SUITE.erl b/lib/compiler/test/beam_type_SUITE.erl index 882e281a44..2297c2e0f5 100644 --- a/lib/compiler/test/beam_type_SUITE.erl +++ b/lib/compiler/test/beam_type_SUITE.erl @@ -24,7 +24,7 @@ integers/1,numbers/1,coverage/1,booleans/1,setelement/1, cons/1,tuple/1,record_float/1,binary_float/1,float_compare/1, arity_checks/1,elixir_binaries/1,find_best/1, - test_size/1,cover_lists_functions/1]). + test_size/1,cover_lists_functions/1,list_append/1]). suite() -> [{ct_hooks,[ts_install_cth]}]. @@ -47,7 +47,8 @@ groups() -> elixir_binaries, find_best, test_size, - cover_lists_functions + cover_lists_functions, + list_append ]}]. init_per_suite(Config) -> @@ -271,8 +272,22 @@ setelement(_Config) -> T0 = id({a,42}), {a,_} = T0, {b,_} = setelement(1, T0, b), + {z,b} = do_setelement_1(<<(id(1)):32>>, {a,b}, z), + {new,two} = do_setelement_2(<<(id(1)):1>>, {one,two}, new), ok. +do_setelement_1(<<N:32>>, Tuple, NewValue) -> + _ = element(N, Tuple), + %% While updating the type for Tuple, beam_ssa_type would do: + %% maps:without(lists:seq(0, 4294967295), Elements) + setelement(N, Tuple, NewValue). + +do_setelement_2(<<N:1>>, Tuple, NewValue) -> + %% Cover the second clause in remove_element_info/2. The + %% type for the second element will be kept. + two = element(2, Tuple), + setelement(N, Tuple, NewValue). + cons(_Config) -> [did] = cons(assigned, did), @@ -487,5 +502,11 @@ cover_lists_functions(Config) -> true = is_list(Zipped), ok. +list_append(_Config) -> + %% '++'/2 has a quirk where it returns the right-hand argument as-is when + %% the left-hand is []. + hello = id([]) ++ id(hello), + ok. + id(I) -> I. diff --git a/lib/compiler/test/receive_SUITE.erl b/lib/compiler/test/receive_SUITE.erl index 0038eb1a4b..752491f0f8 100644 --- a/lib/compiler/test/receive_SUITE.erl +++ b/lib/compiler/test/receive_SUITE.erl @@ -26,7 +26,7 @@ init_per_testcase/2,end_per_testcase/2, export/1,recv/1,coverage/1,otp_7980/1,ref_opt/1, wait/1,recv_in_try/1,double_recv/1,receive_var_zero/1, - match_built_terms/1]). + match_built_terms/1,elusive_common_exit/1]). -include_lib("common_test/include/ct.hrl"). @@ -47,7 +47,7 @@ groups() -> [{p,test_lib:parallel(), [recv,coverage,otp_7980,ref_opt,export,wait, recv_in_try,double_recv,receive_var_zero, - match_built_terms]}]. + match_built_terms,elusive_common_exit]}]. init_per_suite(Config) -> @@ -427,4 +427,26 @@ match_built_terms(Config) when is_list(Config) -> ?MATCH_BUILT_TERM(Ref, <<A, B>>), ?MATCH_BUILT_TERM(Ref, #{ 1 => A, 2 => B}). +elusive_common_exit(_Config) -> + self() ! {1, a}, + self() ! {2, b}, + {[z], [{2,b},{1,a}]} = elusive_loop([x,y,z], 2, []), + ok. + +elusive_loop(List, 0, Results) -> + {List, Results}; +elusive_loop(List, ToReceive, Results) -> + {Result, RemList} = + receive + {_Pos, _R} = Res when List =/= [] -> + [_H|T] = List, + {Res, T}; + {_Pos, _R} = Res when List =:= [] -> + {Res, []} + end, + %% beam_ssa_pre_codegen:fix_receives() would fail to find + %% the common exit block for this receive. That would mean + %% that it would not insert all necessary copy instructions. + elusive_loop(RemList, ToReceive-1, [Result | Results]). + id(I) -> I. |