diff options
Diffstat (limited to 'lib/compiler/test/beam_type_SUITE.erl')
| -rw-r--r-- | lib/compiler/test/beam_type_SUITE.erl | 112 |
1 files changed, 109 insertions, 3 deletions
diff --git a/lib/compiler/test/beam_type_SUITE.erl b/lib/compiler/test/beam_type_SUITE.erl index 492067ef00..d44fa60997 100644 --- a/lib/compiler/test/beam_type_SUITE.erl +++ b/lib/compiler/test/beam_type_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2015-2016. All Rights Reserved. +%% Copyright Ericsson AB 2015-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -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]). + tuple/1,record_float/1,binary_float/1,float_compare/1, + arity_checks/1]). suite() -> [{ct_hooks,[ts_install_cth]}]. @@ -37,7 +38,11 @@ groups() -> booleans, setelement, cons, - tuple + tuple, + record_float, + binary_float, + float_compare, + arity_checks ]}]. init_per_suite(Config) -> @@ -61,6 +66,15 @@ integers(_Config) -> college = do_integers_3(), + zero = do_integers_4(<<0:1>>, 0), + one = do_integers_4(<<1:1>>, 0), + other = do_integers_4(<<1:1>>, 2), + + zero = do_integers_5(0, 0), + one = do_integers_5(0, 1), + two = do_integers_5(0, 2), + three = do_integers_5(0, 3), + ok. do_integers_1(B0) -> @@ -83,6 +97,30 @@ do_integers_3() -> 1 -> 0 end. +do_integers_4(<<X:1,T/bits>>, C) -> + %% Binary matching gives the range 0-1 for X. + %% The range for `X bor C` is unknown. It must not be inherited + %% from X. (`X bor C` will reuse the register used for X.) + case X bor C of + 0 -> do_integers_4(T, C, zero); + 1 -> do_integers_4(T, C, one); + _ -> do_integers_4(T, C, other) + end. + +do_integers_4(_, _, Res) -> + Res. + +do_integers_5(X0, Y0) -> + %% X and Y will use the same register. + X = X0 band 1, + Y = Y0 band 3, + case Y of + 0 -> zero; + 1 -> one; + 2 -> two; + 3 -> three + end. + coverage(_Config) -> {'EXIT',{badarith,_}} = (catch id(1) bsl 0.5), {'EXIT',{badarith,_}} = (catch id(2.0) bsl 2), @@ -126,5 +164,73 @@ tuple(_Config) -> do_tuple() -> {0, _} = {necessary}. +-record(x, {a}). + +record_float(_Config) -> + 17.0 = record_float(#x{a={0}}, 1700), + 23.0 = record_float(#x{a={0}}, 2300.0), + {'EXIT',{if_clause,_}} = (catch record_float(#x{a={1}}, 88)), + {'EXIT',{if_clause,_}} = (catch record_float(#x{a={}}, 88)), + {'EXIT',{if_clause,_}} = (catch record_float(#x{}, 88)), + ok. + +record_float(R, N0) -> + N = N0 / 100, + if element(1, R#x.a) =:= 0 -> + N + end. + +binary_float(_Config) -> + <<-1/float>> = binary_negate_float(<<1/float>>), + ok. + +binary_negate_float(<<Float/float>>) -> + <<-Float/float>>. + +float_compare(_Config) -> + false = do_float_compare(-42.0), + false = do_float_compare(-42), + false = do_float_compare(0), + false = do_float_compare(0.0), + true = do_float_compare(42), + true = do_float_compare(42.0), + ok. + +do_float_compare(X) -> + %% ERL-433: Used to fail before OTP 20. Was accidentally fixed + %% in OTP 20. Add a test case to ensure it stays fixed. + + Y = X + 1.0, + case X > 0 of + T when (T =:= nil) or (T =:= false) -> T; + _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. |