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| author | Zandra <[email protected]> | 2016-01-27 11:44:33 +0100 |
|---|---|---|
| committer | Zandra <[email protected]> | 2016-01-27 11:44:33 +0100 |
| commit | 9722388b2fcec9b7f7e5680335e1bd6392ef11fc (patch) | |
| tree | db013e6468725fd9fcfe81b847afc08f72c51d0f /lib/hipe/test/basic_SUITE_data | |
| parent | b5e787a6483c1aff35d44c0130946df441497d9d (diff) | |
| parent | 8970c8c25c45e6a4f92b0652c65e26d890939409 (diff) | |
| download | otp-9722388b2fcec9b7f7e5680335e1bd6392ef11fc.tar.gz otp-9722388b2fcec9b7f7e5680335e1bd6392ef11fc.tar.bz2 otp-9722388b2fcec9b7f7e5680335e1bd6392ef11fc.zip | |
Merge branch 'kostis/hipe-tests-basic' into maint
OTP-13269
* kostis/hipe-tests-basic:
Fix compilation of matching with UTF binaries
Cleanup and add one more test case
Two tests that depend on inlining being turned on
More tests for BIFs
Include some more old HiPE tests to the test suite
Add tests for the is_boolean/1 guard
Two more tests added
Test that apply/3 is tail recursive
Three more tests added
Minor cleanup
Comment out tests that are not ready for to_llvm
Cleanups & uncomment some code
More tests for handling of UTF in bitstrings
Minor code cleanup
Add more generated test suites in Makefile
Use function from hipe module instead of a local one
Add function to prevent running tests in the LLVM backend
More basic tests
First part of the basic test suite for the HiPE compiler
Diffstat (limited to 'lib/hipe/test/basic_SUITE_data')
26 files changed, 3689 insertions, 0 deletions
diff --git a/lib/hipe/test/basic_SUITE_data/basic_arith.erl b/lib/hipe/test/basic_SUITE_data/basic_arith.erl new file mode 100644 index 0000000000..28e99be053 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_arith.erl @@ -0,0 +1,72 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%--------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests cases for compilation of arithmetic. +%%%--------------------------------------------------------------------- +-module(basic_arith). + +-export([test/0]). + +test() -> + ok = test_rem(), + ok = test_bit_ops(), + ok = test_uplus(), + ok = test_bsl_errors(), + ok. + +%%---------------------------------------------------------------------- +%% Tests the remainder operator. + +test_rem() -> + 2 = ret_rem(42, 20), + -2 = ret_rem(-42, 20), + -2 = ret_rem(-42, -20), + {'EXIT', {badarith, _}} = ret_rem(3.14, 2), + {'EXIT', {badarith, _}} = ret_rem(42, 3.14), + ok. + +ret_rem(X, Y) -> + catch X rem Y. + +%%---------------------------------------------------------------------- +%% + +test_bit_ops() -> + 2 = bbb(11, 2, 16#3ff), + ok. + +bbb(X, Y, Z) -> + ((1 bsl X) bor Y) band Z. + +%%---------------------------------------------------------------------- +%% Tests unary plus: it used to be the identity function but not anymore + +test_uplus() -> + badarith = try uplus(gazonk) catch error:Err -> Err end, + 42 = uplus(42), + ok. + +uplus(X) -> +(X). + +%%---------------------------------------------------------------------- +%% The first part of this test triggered a bug in the emulator as one +%% of the arguments to bsl is not an integer. +%% +%% The second part triggered a compilation crash since an arithmetic +%% expression resulting in a 'system_limit' exception was statically +%% evaluated and an arithmetic result was expected. + +test_bsl_errors() -> + {'EXIT', {'badarith', _}} = (catch (t1(0, pad, 0))), + badarith = try t2(0, pad, 0) catch error:Err1 -> Err1 end, + system_limit = try (id(1) bsl 100000000) catch error:Err2 -> Err2 end, + ok. + +t1(_, X, _) -> + (1 bsl X) + 1. + +t2(_, X, _) -> + (X bsl 1) + 1. + +id(I) -> I. diff --git a/lib/hipe/test/basic_SUITE_data/basic_beam_instrs.erl b/lib/hipe/test/basic_SUITE_data/basic_beam_instrs.erl new file mode 100644 index 0000000000..6fafea3b09 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_beam_instrs.erl @@ -0,0 +1,102 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Tests for correct translation of various BEAM instructions. +%%%------------------------------------------------------------------- +-module(basic_beam_instrs). + +-export([test/0]). + +test() -> + ok = test_make_fun(), + ok = test_switch_val(), + ok = test_put_literal(), + ok = test_set_tuple_element(), + ok = test_unguarded_unsafe_element(), + ok. + +%%-------------------------------------------------------------------- +%% Tests whether the translation of make_fun works. + +test_make_fun() -> + {F, G} = double_the_fun(), + ok = F(), + {ok, 42} = G(42), + FV1 = {ok, free_var1}, + FV2 = {also, {free, var2}}, + {FV1, {ok, [bv]}, FV2} = contains_fun(FV1, ignored, FV2), + ok. + +double_the_fun() -> + {fun () -> ok end, fun (V) -> {ok, V} end}. + +contains_fun(X, _IGNORED_ARG, Y) -> + calls_fun(fun(Term) -> {X, Term, Y} end). + +calls_fun(F) -> + F({ok, [bv]}). + +%%-------------------------------------------------------------------- +%% Tests whether the translation of switch_val works. + +test_switch_val() -> + 'A' = sv(a), + 'B' = sv(b), + 'C' = sv(c), + foo = sv(d), + ok. + +sv(a) -> 'A'; +sv(b) -> 'B'; +sv(c) -> 'C'; +sv(_) -> foo. + +%%-------------------------------------------------------------------- +%% Tests correct handling of literals (statically constant terms) + +-define(QUADRUPLE, {a,b,c,42}). +-define(DEEP_LIST, [42,[42,[42]]]). + +test_put_literal() -> + ?QUADRUPLE = mk_literal_quadruple(), + ?DEEP_LIST = mk_literal_deep_list(), + ok. + +mk_literal_quadruple() -> + ?QUADRUPLE. + +mk_literal_deep_list() -> + ?DEEP_LIST. + +%%-------------------------------------------------------------------- +%% Tests whether the translation of set_tuple_element works. + +-record(rec, {f1, f2, f3, f4, f5}). + +test_set_tuple_element() -> + F2 = [a,b,c], F4 = {a,b}, + State0 = init_rec(F2, F4), + State1 = simple_set(State0, 42), + #rec{f1 = foo, f2 = F2, f3 = 42, f4 = F4, f5 = 42.0} = odd_set(State1, 21), + ok. + +init_rec(F2, F4) -> + #rec{f1 = bar, f2 = F2, f3 = 10, f4 = F4, f5 = 3.14}. + +simple_set(State, Val) -> %% f3 = Val is the one used in set_element; + State#rec{f3 = Val, f5 = Val*2}. %% this checks the case of variable + +odd_set(State, Val) -> %% f3 = foo is the one used in set_element; + State#rec{f1 = foo, f5 = Val*2.0}. %% this checks the case of constant + +%%-------------------------------------------------------------------- +%% Tests the handling of unguarded unsafe_element operations that BEAM +%% can sometimes construct on records (when it has enough context). + +test_unguarded_unsafe_element() -> + {badrecord, rec} = try unguarded_unsafe_element(42) catch error:E -> E end, + ok. + +unguarded_unsafe_element(X) -> + X#rec{f1 = X#rec.f3}. diff --git a/lib/hipe/test/basic_SUITE_data/basic_bifs.erl b/lib/hipe/test/basic_SUITE_data/basic_bifs.erl new file mode 100644 index 0000000000..e7ee2f3678 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_bifs.erl @@ -0,0 +1,257 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests for handling of BIFs in guards and body calls. +%%%------------------------------------------------------------------- +-module(basic_bifs). + +-export([test/0]). + +-define(BIG, 1398479237498374913984792374983749). + +test() -> + ok = test_abs(), + ok = test_binary_part(), + ok = test_element(), + ok = test_float(), + ok = test_float_to_list(), + ok = test_integer_to_list(), + ok = test_list_to_float(), + ok = test_list_to_integer(), + ok = test_round(), + ok = test_trunc(), + ok. + +%%-------------------------------------------------------------------- + +test_abs() -> + t_abs(5.5, 0.0, -100.0, 5, 0, -100, ?BIG). + +t_abs(F1, F2, F3, I1, I2, I3, BigNum) -> + %% Floats. + 5.5 = abs(F1), + 0.0 = abs(F2), + 100.0 = abs(F3), + %% Integers. + 5 = abs(I1), + 0 = abs(I2), + 100 = abs(I3), + %% Bignums. + BigNum = abs(BigNum), + BigNum = abs(-BigNum), + ok. + +%%-------------------------------------------------------------------- +%% Checks that 2-ary and 3-ary BIFs can be compiled to native code. + +test_binary_part() -> + Bin = <<1,2,3,4,5,6,7,8,9,10>>, + BinPart = bp3(Bin), + <<7,8>> = bp2(BinPart), + ok. + +bp2(Bin) -> + binary_part(Bin, {1, 2}). + +bp3(Bin) -> + binary_part(Bin, byte_size(Bin), -5). + +%%-------------------------------------------------------------------- + +test_element() -> + true = elem({a, b}), + false = elem({a, c}), + other = elem(gazonk), + ok. + +elem(T) when element(1, T) == a -> element(2, T) == b; +elem(_) -> other. + +%%-------------------------------------------------------------------- + +test_float() -> + t_float(0, 42, -100, 2.5, 0.0, -100.42, ?BIG, -?BIG). + +t_float(I1, I2, I3, F1, F2, F3, B1, B2) -> + 0.0 = float(I1), + 2.5 = float(F1), + 0.0 = float(F2), + -100.42 = float(F3), + 42.0 = float(I2), + -100.0 = float(I3), + %% Bignums. + 1398479237498374913984792374983749.0 = float(B1), + -1398479237498374913984792374983749.0 = float(B2), + %% Extremly big bignums. + Big = list_to_integer(duplicate(2000, $1)), + {'EXIT', _} = (catch float(Big)), + %% Invalid types and lists. + {'EXIT', _} = (catch my_list_to_integer(atom)), + {'EXIT', _} = (catch my_list_to_integer(123)), + {'EXIT', _} = (catch my_list_to_integer([$1, [$2]])), + {'EXIT', _} = (catch my_list_to_integer("1.2")), + {'EXIT', _} = (catch my_list_to_integer("a")), + {'EXIT', _} = (catch my_list_to_integer("")), + ok. + +my_list_to_integer(X) -> + list_to_integer(X). + +%%-------------------------------------------------------------------- + +test_float_to_list() -> + test_ftl("0.0e+0", 0.0), + test_ftl("2.5e+1", 25.0), + test_ftl("2.5e+0", 2.5), + test_ftl("2.5e-1", 0.25), + test_ftl("-3.5e+17", -350.0e15), + ok. + +test_ftl(Expect, Float) -> + %% No \n on the next line -- we want the line number from t_float_to_list. + Expect = remove_zeros(lists:reverse(float_to_list(Float)), []). + +%% Removes any non-significant zeros in a floating point number. +%% Example: 2.500000e+01 -> 2.5e+1 + +remove_zeros([$+, $e|Rest], [$0, X|Result]) -> + remove_zeros([$+, $e|Rest], [X|Result]); +remove_zeros([$-, $e|Rest], [$0, X|Result]) -> + remove_zeros([$-, $e|Rest], [X|Result]); +remove_zeros([$0, $.|Rest], [$e|Result]) -> + remove_zeros(Rest, [$., $0, $e|Result]); +remove_zeros([$0|Rest], [$e|Result]) -> + remove_zeros(Rest, [$e|Result]); +remove_zeros([Char|Rest], Result) -> + remove_zeros(Rest, [Char|Result]); +remove_zeros([], Result) -> + Result. + +%%-------------------------------------------------------------------- + +test_integer_to_list() -> + t_integer_to_list(0, 42, 32768, 268435455, 123456932798748738738). + +t_integer_to_list(I1, I2, I3, I4, BIG) -> + "0" = integer_to_list(I1), + "42" = integer_to_list(I2), + "-42" = integer_to_list(-I2), + "-42" = integer_to_list(-I2), + "32768" = integer_to_list(I3), + "268435455" = integer_to_list(I4), + "-268435455" = integer_to_list(-I4), + "123456932798748738738" = integer_to_list(BIG), + BigList = duplicate(2000, $1), + Big = list_to_integer(BigList), + BigList = integer_to_list(Big), + ok. + +%%-------------------------------------------------------------------- + +test_list_to_float() -> + ok = t_list_to_float_safe(), + ok = t_list_to_float_risky(). + +t_list_to_float_safe() -> + 0.0 = my_list_to_float("0.0"), + 0.0 = my_list_to_float("-0.0"), + 0.5 = my_list_to_float("0.5"), + -0.5 = my_list_to_float("-0.5"), + 100.0 = my_list_to_float("1.0e2"), + 127.5 = my_list_to_float("127.5"), + -199.5 = my_list_to_float("-199.5"), + {'EXIT', _} = (catch my_list_to_float("0")), + {'EXIT', _} = (catch my_list_to_float("0..0")), + {'EXIT', _} = (catch my_list_to_float("0e12")), + {'EXIT', _} = (catch my_list_to_float("--0.0")), + ok. + +my_list_to_float(X) -> + list_to_float(X). + +%% This might crash the emulator. (Used to crash Erlang 4.4.1 on Unix.) + +t_list_to_float_risky() -> + Many_Ones = duplicate(25000, $1), + ok = case list_to_float("2." ++ Many_Ones) of + F when is_float(F), 0.0 < F, F =< 3.14 -> ok + end, + {'EXIT', _} = (catch list_to_float("2" ++ Many_Ones)), + ok. + +%%-------------------------------------------------------------------- + +test_list_to_integer() -> + ok = t_list_to_integer_small("0", "00", "-0", "1", "-1", "42", "-12", + "32768", "268435455", "-268435455"), + ok = t_list_to_integer_bignum("123456932798748738738666"), + ok. + +t_list_to_integer_small(S1, S2, S3, S4, S5, S6, S7, S8, S9, S10) -> + 0 = list_to_integer(S1), + 0 = list_to_integer(S2), + 0 = list_to_integer(S3), + 1 = list_to_integer(S4), + -1 = list_to_integer(S5), + 42 = list_to_integer(S6), + -12 = list_to_integer(S7), + 32768 = list_to_integer(S8), + 268435455 = list_to_integer(S9), + -268435455 = list_to_integer(S10), + ok. + +t_list_to_integer_bignum(S) -> + 123456932798748738738666 = list_to_integer(S), + case list_to_integer(duplicate(2000, $1)) of + I when is_integer(I), I > 123456932798748738738666 -> ok + end. + +%%-------------------------------------------------------------------- + +test_round() -> + ok = t_round_small(0.0, 0.4, 0.5, -0.4, -0.5, 255.3, 255.6, -1033.3, -1033.6), + ok = t_round_big(4294967296.1, 4294967296.9), + ok. + +t_round_small(F1, F2, F3, F4, F5, F6, F7, F8, F9) -> + 0 = round(F1), + 0 = round(F2), + 1 = round(F3), + 0 = round(F4), + -1 = round(F5), + 255 = round(F6), + 256 = round(F7), + -1033 = round(F8), + -1034 = round(F9), + ok. + +t_round_big(B1, B2) -> + 4294967296 = round(B1), + 4294967297 = round(B2), + -4294967296 = round(-B1), + -4294967297 = round(-B2), + ok. + +%%-------------------------------------------------------------------- + +test_trunc() -> + t_trunc(0.0, 5.3333, -10.978987, 4294967305.7). + +t_trunc(F1, F2, F3, B) -> + 0 = trunc(F1), + 5 = trunc(F2), + -10 = trunc(F3), + %% Bignums. + 4294967305 = trunc(B), + -4294967305 = trunc(-B), + ok. + +%%-------------------------------------------------------------------- +%% Auxiliary functions below + +duplicate(N, X) when is_integer(N), N >= 0 -> + duplicate(N, X, []). + +duplicate(0, _, L) -> L; +duplicate(N, X, L) -> duplicate(N-1, X, [X|L]). diff --git a/lib/hipe/test/basic_SUITE_data/basic_bignums.erl b/lib/hipe/test/basic_SUITE_data/basic_bignums.erl new file mode 100644 index 0000000000..e3b523b3f5 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_bignums.erl @@ -0,0 +1,143 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains code examples that test bignum arithmetic and matching. +%%%------------------------------------------------------------------- +-module(basic_bignums). + +-export([test/0, test_bsl/0]). + +test() -> + ok = test_ops(), + ok = test_big_fac(), + ok = test_int_overfl_32(), + ok = test_int_overfl_64(), + ok = test_int_overfl_32_guard(), + ok = test_int_overfl_64_guard(), + ok. + +%%-------------------------------------------------------------------- +%% Define some constants for the tests of arithmetic operators + +-define(X, 68719476736). +-define(Y, 98765432101234). +-define(Z, 4722366482869645213696). +-define(W, 339254531512339254531512). + +-define(B1, 4398046511104). +-define(B5, 1645504557321206042154969182557350504982735865633579863348609024). +-define(B17, 86182066610968551542636378241108028056376767329454880514019834315878107616003372189510312530372009184902888961739623919010110377987011442493486117202360415845666384627768436296772219009176743399772868636439042064384). + +%%-------------------------------------------------------------------- + +test_ops() -> + ok = test_mult(), + ok = test_div(), + ok = test_round(), + ok = test_trunc(), + ok = test_bsl(), + ok. + +test_mult() -> + ?Z = mult(?X, ?X), + ok. + +mult(X, Y) -> X * Y. + +test_div() -> + 4 = div_f(339254531512, ?X), + 0 = div_f(?Y, ?Y+1), + 64 = div_f(?B1, ?X), + ?X = div_f(?Z, ?X), + 1073741824 = div_f(?Z, ?B1), + ok. + +div_f(X, Y) -> X div Y. + +test_round() -> + 0 = round_f(?Z, ?W), + 1 = round_f(?Y, ?Y), + 71 = round_f(?W, ?Z), + 1437 = round_f(?Y, ?X), + 47813960 = round_f(?Z, ?Y), + 4936803183406 = round_f(?W, ?X), + ok. + +trunc_f(X, Y) -> round(X/Y). + +test_trunc() -> + 0 = trunc_f(?Z, ?W), + 1 = trunc_f(?Y, ?Y), + 72 = trunc_f(?W, ?Z), + 1437 = trunc_f(?Y, ?X), + 47813961 = trunc_f(?Z, ?Y), + 4936803183407 = trunc_f(?W, ?X), + ok. + +round_f(X, Y) -> trunc(X/Y). + +test_bsl() -> + ?B1 = bsl_f(1, 42), + ?B5 = n(5, fun erlang:'bsl'/2, 1, 42), % use the operator + ?B17 = n(17, fun bsl_f/2, 1, 42), % use the local function + ok. + +bsl_f(X, Y) -> X bsl Y. + +%% applies a binary function N times +n(1, F, X, Y) -> F(X, Y); +n(N, F, X, Y) when N > 1 -> n(N-1, F, F(X, Y), Y). + +%%-------------------------------------------------------------------- + +-define(FAC42, 1405006117752879898543142606244511569936384000000000). + +test_big_fac() -> + ?FAC42 = fac(42), + ok. + +fac(0) -> 1; +fac(N) -> N * fac(N-1). + +%%-------------------------------------------------------------------- +%% Tests for correct handling of integer overflow + +test_int_overfl_32() -> + 16#7FFFFFF = add(16#7FFFFFF, 0), + 16#8000000 = add(16#8000000, 0), + 16#8000001 = add(16#8000000, 1), + case add(16#7FFFFFF, 1) of + 16#8000000 -> ok; + -16#7FFFFFF -> error + end. + +test_int_overfl_64() -> + 16#7FFFFFFFFFFFFFF = add(16#7FFFFFFFFFFFFFF, 0), + 16#800000000000000 = add(16#800000000000000, 0), + 16#800000000000001 = add(16#800000000000000, 1), + case add(16#7FFFFFFFFFFFFFF, 1) of + 16#800000000000000 -> ok; + -16#7FFFFFFFFFFFFFF -> error + end. + +add(X, Y) -> X + Y. + +%%-------------------------------------------------------------------- +%% Tests for correct handling of integer overflow in guards + +test_int_overfl_32_guard() -> + ok = overfl_in_guard(16#7ffffff, 0), + ok = overfl_in_guard(16#7ffffff, 16#7ffffff), + ok. + +test_int_overfl_64_guard() -> + ok = overfl_in_guard(16#7ffffffffffffff, 0), + ok = overfl_in_guard(16#7ffffffffffffff, 16#7ffffffffffffff), + ok. + +overfl_in_guard(X, Y) -> + case ok of + V when X+Y > 12 -> V; + _ -> bad + end. diff --git a/lib/hipe/test/basic_SUITE_data/basic_boolean.erl b/lib/hipe/test/basic_SUITE_data/basic_boolean.erl new file mode 100644 index 0000000000..e4a91ef5af --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_boolean.erl @@ -0,0 +1,47 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Tests for correct translation of booleans and their primitives. +%%%------------------------------------------------------------------- +-module(basic_boolean). + +-export([test/0]). + +test() -> + ok = test_boolean_ops(false, true), + ok = test_orelse_redundant(), + ok. + +%%-------------------------------------------------------------------- + +test_boolean_ops(F, T) -> + true = T and T, + false = T and F, + false = F and T, + false = F and F, + true = T or T, + true = T or F, + true = F or T, + false = F or F, + true = T andalso T, + false = T andalso F, + false = F andalso T, + false = F andalso F, + true = T orelse T, + true = T orelse F, + true = F orelse T, + false = F orelse F, + ok. + +%%-------------------------------------------------------------------- +%% Redundant test in BEAM code will generate type warning. + +test_orelse_redundant() -> + true = test_orelse(true, true, true), + ok. + +test_orelse(A, B, C) -> + A andalso B orelse C. + +%%-------------------------------------------------------------------- diff --git a/lib/hipe/test/basic_SUITE_data/basic_bugs_beam.erl b/lib/hipe/test/basic_SUITE_data/basic_bugs_beam.erl new file mode 100644 index 0000000000..964b0f423a --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_bugs_beam.erl @@ -0,0 +1,138 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains code examples that exhibited bugs in the BEAM compiler. +%%%------------------------------------------------------------------- +-module(basic_bugs_beam). + +-export([test/0]). + +%% the following is needed for the test_weird_message +-export([loop/1]). +%% the following are needed for the test_catch_bug +-behaviour(gen_server). +-export([start_link/1]). +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +test() -> + ok = test_fp_basic_blocks(), + ok = test_weird_message(), + ok = test_catch_bug(), + ok. + +%%-------------------------------------------------------------------- +%% Test which shows that BEAM's splitting of basic blocks should take +%% into account that arithmetic operations implemented as BIFs can +%% also cause exceptions and thus calls to BIFs should end basic blocks. +%% +%% Investigated and fixed in the beginning of April 2004. +%%-------------------------------------------------------------------- + +test_fp_basic_blocks() -> + ok = t1(), + ok = t2(). + +t1() -> + X = (catch bad_arith1(2.0, 1.7)), + case X of + {'EXIT', {badarith, _}} -> + ok; + _ -> + error + end. + +bad_arith1(X, Y) when is_float(X) -> + X1 = X * 1.7e+308, + X2 = X1 + 1.0, + Y1 = Y * 2, + {X2, Y1}. + +%% Similarly, it is not kosher to have anything that can fail inside +%% the fp block since it will throw the exception before the fp +%% exception and we will get the same problems. + +t2() -> + case catch bad_arith2(2.0, []) of + {'EXIT', {badarith, _}} -> + ok; + _ -> + error + end. + +bad_arith2(X, Y) when is_float(X) -> + X1 = X * 1.7e+308, + Y1 = element(1, Y), + {X1 + 1.0, Y1}. + +%%-------------------------------------------------------------------- +%% Sending 'test' to this process should return 'ok'. But: +%% +%% 1> MOD:test(). +%% Weird: received true +%% timeout +%% +%% Surprisingly, the message has been bound to the value of 'ena' +%% in the record! The problem was visible in the .S file. +%%-------------------------------------------------------------------- + +-record(state, {ena = true}). + +test_weird_message() -> + P = spawn_link(?MODULE, loop, [#state{}]), + P ! {msg, self()}, + receive + What -> What + after 42 -> timeout + end. + +loop(S) -> + receive + _ when S#state.ena == false -> + io:format("Weird: ena is false\n"); + % loop(S); + {msg, Pid} -> + Pid ! ok; + % loop(S); + Other -> + io:format("Weird: received ~p\n", [Other]) + % loop(S) + end. + +%%-------------------------------------------------------------------- +%% This was posted on the Erlang mailing list as a question: +%% +%% Given the module below and the function call +%% "catch_bug:start_link(foo)." +%% from the Erlang shell, why does Erlang crash with "Catch not found"? +%% +%% The BEAM compiler was generating wrong code for this case; +%% this was fixed in R9C-0. Native code generation was OK. +%%-------------------------------------------------------------------- + +test_catch_bug() -> + ignore = start_link(foo), + ok. + +start_link(Param) -> + gen_server:start_link(?MODULE, Param, []). + +init(Param) -> + process_flag(trap_exit, true), + (catch begin + dummy(Param), + (catch exit(bar)) + end + ), + ignore. + +dummy(_) -> ok. + +%% gen_server callbacks below +handle_call(_Call, _From, State) -> {noreply, State}. +handle_cast(_Msg, State) -> {noreply, State}. +handle_info(_Msg, State) -> {noreply, State}. +terminate(_Reason, _State) -> ok. +code_change(_OldVsn, State, _Extra) -> {ok, State}. + diff --git a/lib/hipe/test/basic_SUITE_data/basic_bugs_hipe.erl b/lib/hipe/test/basic_SUITE_data/basic_bugs_hipe.erl new file mode 100644 index 0000000000..caa0e71d0b --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_bugs_hipe.erl @@ -0,0 +1,463 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%---------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains code examples that exhibited bugs in the HiPE compiler. +%%%---------------------------------------------------------------------- +-module(basic_bugs_hipe). + +-export([test/0]). + +test() -> + ok = test_ets_bifs(), + ok = test_szar_bug(), + ok = test_bit_shift(), + ok = test_match_big_list(), + ok = test_unsafe_bsl(), + ok = test_unsafe_bsr(), + ok = test_R12B5_seg_fault(), + ok = test_switch_neg_int(), + ok = test_icode_range_anal(), + ok. + +%%----------------------------------------------------------------------- +%% From: Bjorn Gustavsson +%% +%% This code, if HiPE compiled, crashed like this (on SPARC) +%% +%% (gdb) where +%% #0 fullsweep_heap (p=0x2c60dc, new_sz=610, objv=0xffbee8b4, nobj=3) +%% at beam/ggc.c:1060 +%% #1 0x7ff24 in erts_garbage_collect (p=0x2c60dc, need=2, objv=0x1128fc, ...) +%% at beam/ggc.c:1648 +%% #2 0xab6fc in hipe_mode_switch (p=0x2c60dc, cmd=704512, reg=0x1128fc) +%% at hipe/hipe_mode_switch.c:180 +%% #3 0x8e27c in process_main () at beam/beam_emu.c:3314 +%% #4 0x31338 in erl_start (argc=9, argv=0xffbeed5c) at beam/erl_init.c:936 +%% #5 0x2d9f4 in main (argc=9, argv=0xffbeed5c) at sys/unix/erl_main.c:28 +%% +%% A guess at what could be the problem: From R8, many ets BIFs trap +%% to other ets BIFs with a *different* arity (i.e. they have more or +%% less arguments). I have probably forgotten to mention that subtle +%% change. +%%----------------------------------------------------------------------- + +test_ets_bifs() -> + Seed = {1032, 15890, 22716}, + put(random_seed, Seed), + do_random_test(). + +do_random_test() -> + OrdSet = ets:new(xxx, [ordered_set]), + Set = ets:new(xxx, []), + do_n_times(fun() -> + Key = create_random_string(25), + Value = create_random_tuple(25), + ets:insert(OrdSet, {Key, Value}), + ets:insert(Set, {Key, Value}) + end, 5000), + %% io:format("~nData inserted~n"), + do_n_times(fun() -> + I = random:uniform(25), + Key = create_random_string(I) ++ '_', + L1 = ets_match_object(OrdSet, {Key, '_'}), + L2 = lists:sort(ets_match_object(Set, {Key, '_'})), + case L1 == L2 of + false -> + %% io:format("~p != ~p~n", [L1, L2]), + exit({not_eq, L1, L2}); + true -> + ok + end + end, 2000), + %% io:format("~nData matched~n"), + ets:match_delete(OrdSet, '_'), + ets:match_delete(Set, '_'), + ok. + +create_random_string(0) -> + []; +create_random_string(OfLength) -> + C = case random:uniform(2) of + 1 -> (random:uniform($Z - $A + 1) - 1) + $A; + _ -> (random:uniform($z - $a + 1) - 1) + $a + end, + [C | create_random_string(OfLength - 1)]. + +create_random_tuple(OfLength) -> + list_to_tuple([list_to_atom([X]) || X <- create_random_string(OfLength)]). + +ets_match_object(Tab,Expr) -> + case random:uniform(2) of + 1 -> ets:match_object(Tab,Expr); + _ -> match_object_chunked(Tab,Expr) + end. + +match_object_chunked(Tab,Expr) -> + match_object_chunked_collect(ets:match_object(Tab, Expr, + random:uniform(1999) + 1)). + +match_object_chunked_collect('$end_of_table') -> + []; +match_object_chunked_collect({Results, Continuation}) -> + Results ++ match_object_chunked_collect(ets:match_object(Continuation)). + +do_n_times(_, 0) -> + ok; +do_n_times(Fun, N) -> + Fun(), + case N rem 1000 of + 0 -> ok; %% WAS: io:format("."); + _ -> ok + end, + do_n_times(Fun, N - 1). + +%%----------------------------------------------------------------------- +%% From: Jozsef Berces (PR/ECZ) +%% Date: Feb 19, 2004 +%% +%% Program which was added to the testsuite as a result of another bug +%% report involving tuples as funs. Thanks God, these are no longer +%% supported, but the following is a good test for testing calling +%% native code funs from BEAM code (lists:map, lists:filter, ...). +%%----------------------------------------------------------------------- + +test_szar_bug() -> + ["A","B","C"] = smartconcat([], "H'A, H'B, H'C"), + ok. + +smartconcat(B, L) -> + LL = tokenize(L, $,), + NewlineDel = fun (X) -> killcontrol(X) end, + StripFun = fun (X) -> string:strip(X) end, + LL2 = lists:map(NewlineDel, lists:map(StripFun, LL)), + EmptyDel = fun(X) -> + case string:len(X) of + 0 -> false; + _ -> true + end + end, + LL3 = lists:filter(EmptyDel, LL2), + HexFormat = fun(X, Acc) -> + case string:str(X, "H'") of + 1 -> + case checkhex(string:substr(X, 3)) of + {ok, Y} -> + {Y, Acc}; + _ -> + {X, Acc + 1} + end; + _ -> + {X, Acc + 1} + end + end, + {LL4,_Ret} = lists:mapfoldl(HexFormat, 0, LL3), + lists:append(B, lists:sublist(LL4, lists:max([0, 25 - length(B)]))). + +checkhex(L) -> + checkhex(L, ""). + +checkhex([H | T], N) when H >= $0, H =< $9 -> + checkhex(T, [H | N]); +checkhex([H | T], N) when H >= $A, H =< $F -> + checkhex(T, [H | N]); +checkhex([H | T], N) when H =< 32 -> + checkhex(T, N); +checkhex([_ | _], _) -> + {error, ""}; +checkhex([], N) -> + {ok, lists:reverse(N)}. + +killcontrol([C | S]) when C < 32 -> + killcontrol(S); +killcontrol([C | S]) -> + [C | killcontrol(S)]; +killcontrol([]) -> + []. + +tokenize(L, C) -> + tokenize(L, C, [], []). + +tokenize([C | T], C, A, B) -> + case A of + [] -> + tokenize(T, C, [], B); + _ -> + tokenize(T, C, [], [lists:reverse(A) | B]) + end; +tokenize([H | T], C, A, B) -> + tokenize(T, C, [H | A], B); +tokenize(_, _, [], B) -> + lists:reverse(B); +tokenize(_, _, A, B) -> + lists:reverse([lists:reverse(A) | B]). + +%%----------------------------------------------------------------------- +%% From: Niclas Pehrsson +%% Date: Apr 20, 2006 +%% +%% We found something weird with the bit shifting in HiPE. It seems +%% that bsr in some cases shifts the bits in the wrong way... +%% +%% Fixed about 10 mins afterwards; was a bug in constant propagation. +%%----------------------------------------------------------------------- + +test_bit_shift() -> + 1 = plain_shift(), % 1 + 6 = length_list_plus(), % 6 + 0 = shift_length_list(), % 0 + 1 = shift_length_list_plus(), % 1 + 1 = shift_length_list_plus2(), % 1 + 24 = shift_length_list_plus_bsl(), % 24 + 1 = shift_fun(), % 1 + %% {1, 6, 0, 1, 1, 24, 1} = {A, B, C, D, E, F, G}, + ok. + +plain_shift() -> + 6 bsr 2. + +length_list() -> + length([0,0]). + +length_list_plus() -> + length([0,0]) + 4. + +shift_length_list() -> + length([0,0]) bsr 2. + +shift_length_list_plus() -> + (length([0,0]) + 4) bsr 2. + +shift_length_list_plus_bsl() -> + (length([0,0]) + 4) bsl 2. + +shift_length_list_plus2() -> + N = length([0,0]) + 4, + N bsr 2. + +shift_fun() -> + (length_list() + 4) bsr 2. + +%%----------------------------------------------------------------------- +%% From: Igor Goryachev +%% Date: June 15, 2006 +%% +%% I have experienced a different behaviour and possibly a weird result +%% while playing with matching a big list on x86 and x86_64 machines. +%%----------------------------------------------------------------------- + +-define(BIG_LIST, + ["uid", "nickname", "n_family", "n_given", "email_pref", + "tel_home_number", "tel_cellular_number", "adr_home_country", + "adr_home_locality", "adr_home_region", "url", "gender", "bday", + "constitution", "height", "weight", "hair", "routine", "smoke", + "maritalstatus", "children", "independence", "school_number", + "school_locality", "school_title", "school_period", "org_orgname", + "title", "adr_work_locality", "photo_type", "photo_binval"]). + +test_match_big_list() -> + case create_tuple_with_big_const_list() of + {selected, ?BIG_LIST, _} -> ok; + _ -> weird + end. + +create_tuple_with_big_const_list() -> + {selected, ?BIG_LIST, [{"test"}]}. + +%%----------------------------------------------------------------------- +%% In October 2006 the HiPE compiler acquired more type-driven +%% optimisations of arithmetic operations. One of these, the +%% transformation of bsl to a pure fixnum bsl fixnum -> fixnum version +%% (unsafe_bsl), was incorrectly performed even when the result +%% wouldn't be a fixnum. The error occurred for all backends, but the +%% only place known to break was hipe_arm:imm_to_am1/2. Some +%% immediates got broken on ARM, causing segmentation faults in +%% compiler_tests when HiPE recompiled itself. +%%----------------------------------------------------------------------- + +test_unsafe_bsl() -> + ok = bsl_check(bsl_test_cases()). + +bsl_test_cases() -> + [{16#FF, {16#FF, 0}}, + {16#F000000F, {16#FF, 2}}]. + +bsl_check([]) -> ok; +bsl_check([{X, Y}|Rest]) -> + case imm_to_am1(X) of + Y -> bsl_check(Rest); + _ -> 'hipe_broke_bsl' + end. + +imm_to_am1(Imm) -> + imm_to_am1(Imm band 16#FFFFFFFF, 16). +imm_to_am1(Imm, RotCnt) -> + if Imm >= 0, Imm =< 255 -> {Imm, RotCnt band 15}; + true -> + NewRotCnt = RotCnt - 1, + if NewRotCnt =:= 0 -> []; % full circle, no joy + true -> + NewImm = (Imm bsr 2) bor ((Imm band 3) bsl 30), + imm_to_am1(NewImm, NewRotCnt) + end + end. + +%%----------------------------------------------------------------------- +%% Another transformation, namely that of bsr to a pure fixnum bsr +%% fixnum -> fixnum version (unsafe_bsr), failed to check for shifts +%% larger than the number of bits in fixnums. Such shifts should +%% return zero, but instead they became plain machine-level shift +%% instructions. Machines often only consider the low-order bits of +%% the shift count, so machine-level shifts larger than the word size +%% do not match the Erlang semantics. +%%----------------------------------------------------------------------- + +test_unsafe_bsr() -> + ok = bsr_check(bsr_test_cases()). + +bsr_test_cases() -> + [{16#FF, 4, 16#0F}, + {16#FF, 64, 0}]. + +bsr_check([]) -> ok; +bsr_check([{X, Y, Z}|Rest]) -> + case do_bsr(X, Y) of + Z -> bsr_check(Rest); + _ -> 'hipe_broke_bsr' + end. + +do_bsr(X, Y) -> + (X band 16#FFFF) bsr (Y band 16#FFFF). + +%%----------------------------------------------------------------------- +%% From: Sergey S, mid January 2009. +%% +%% While I was playing with +native option, I run into a bug in HiPE +%% which leads to segmentation fault using +native and Erlang R12B-5. +%% +%% Eshell V5.6.5 +%% 1> crash:test(). +%% # Some message to be printed here each loop iteration +%% Segmentation fault +%% +%% Diagnosed and fixed by Mikael Pettersson (22 Jan 2009): +%% +%% I've analysed the recently posted HiPE bug report on erlang-bugs +%% <http://www.erlang.org/pipermail/erlang-bugs/2009-January/001162.html>. +%% The segfault is caused by memory corruption, which in turn is caused +%% by RTL removing an update of the HP (heap pointer) register due to +%% what looks like broken liveness information. +%%----------------------------------------------------------------------- + +test_R12B5_seg_fault() -> + _ = spawn(fun() -> init() end), + ok. + +init() -> + repeat(5, fun() -> void end), + receive after infinity -> ok end. + +repeat(0, _) -> + ok; +repeat(N, Fun) -> + %% io:format("# Some message to be printed here each loop iteration\n"), + Fun(), + repeat(N - 1, Fun). + +%%----------------------------------------------------------------------- +%% From: Jon Meredith +%% Date: July 9, 2009 +%% +%% Binary search key tables are sorted by the loader based on the +%% runtime representations of the keys as unsigned words. However, +%% the code generated for the binary search used signed comparisons. +%% That worked for atoms and non-negative fixnums, but not for +%% negative fixnums. Fixed by Mikael Pettersson July 10, 2009. +%%----------------------------------------------------------------------- + +test_switch_neg_int() -> + ok = f(-80, 8). + +f(10, -1) -> ok; +f(X, Y) -> + Y = g(X), + f(X + 10, Y - 1). + +g(X) -> % g(0) should be 0 but became -1 + case X of + 0 -> 0; + -10 -> 1; + -20 -> 2; + -30 -> 3; + -40 -> 4; + -50 -> 5; + -60 -> 6; + -70 -> 7; + -80 -> 8; + _ -> -1 + end. + +%%----------------------------------------------------------------------- +%% From: Paul Guyot +%% Date: Jan 31, 2011 +%% +%% There is a bug in HiPE compilation with the comparison of floats +%% with integers. This bug happens in functions f/1 and g/2 below. +%% BEAM will evaluate f_eq(42) and f_eq(42.0) to true, while HiPE +%% will evaluate them to false. +%% +%% The culprit was the Icode range analysis which was buggy. (On the +%% other hand, HiPE properly evaluated these calls to true if passed +%% the option 'no_icode_range'.) Fixed by Kostis Sagonas. +%% -------------------------------------------------------------------- + +test_icode_range_anal() -> + true = f_eq(42), + true = f_eq(42.0), + false = f_ne(42), + false = f_ne(42.0), + false = f_eq_ex(42), + false = f_eq_ex(42.0), + true = f_ne_ex(42), + true = f_ne_ex(42.0), + false = f_gt(42), + false = f_gt(42.0), + true = f_le(42), + true = f_le(42.0), + zero_test = g(0, test), + zero_test = g(0.0, test), + non_zero_test = g(42, test), + other = g(42, other), + ok. + +f_eq(X) -> + Y = X / 2, + Y == 21. + +f_ne(X) -> + Y = X / 2, + Y /= 21. + +f_eq_ex(X) -> + Y = X / 2, + Y =:= 21. + +f_ne_ex(X) -> + Y = X / 2, + Y =/= 21. + +f_gt(X) -> + Y = X / 2, + Y > 21. + +f_le(X) -> + Y = X / 2, + Y =< 21. + +g(X, Z) -> + Y = X / 2, + case Z of + test when Y == 0 -> zero_test; + test -> non_zero_test; + other -> other + end. diff --git a/lib/hipe/test/basic_SUITE_data/basic_comparisons.erl b/lib/hipe/test/basic_SUITE_data/basic_comparisons.erl new file mode 100644 index 0000000000..8dab2cab1f --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_comparisons.erl @@ -0,0 +1,157 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests for correct execution of comparison operators. +%%%------------------------------------------------------------------- +-module(basic_comparisons). + +-export([test/0]). + +test() -> + Ns = [0, 0.0, 42, 42.0, gazonk], + T1F4 = [true, false, false, false, false], + T2F3 = [true, true, false, false, false], + F1T4 = [false, true, true, true, true], + F2T3 = [false, false, true, true, true], + %% tests for calls + T1F4 = [eq_exact_call(0, N) || N <- Ns], + F1T4 = [ne_exact_call(0, N) || N <- Ns], + T2F3 = [eq_call(0, N) || N <- Ns], + F2T3 = [ne_call(0, N) || N <- Ns], + %% tests for guards + T1F4 = [eq_exact_guard(0, N) || N <- Ns], + F1T4 = [ne_exact_guard(0, N) || N <- Ns], + T2F3 = [eq_guard(0, N) || N <- Ns], + F2T3 = [ne_guard(0, N) || N <- Ns], + %% some more tests + ok = test_against_zero(), + ok = test_against_other_terms(), + ok = test_sofs_func(), + ok. + +test_against_zero() -> + Xs = [0, 1, 0.0], + [true, false, false] = [is_zero_int(X) || X <- Xs], + [true, false, true] = [is_zero_num(X) || X <- Xs], + [false, true, true] = [is_nonzero_int(X) || X <- Xs], + [false, true, false] = [is_nonzero_num(X) || X <- Xs], + ok. + +test_against_other_terms() -> + TTT = {true, true, true}, + FFF = {false, false, false}, + TTT = {is_foo_exact(foo), is_foo_term1(foo), is_foo_term2(foo)}, + FFF = {is_foo_exact(bar), is_foo_term1(bar), is_foo_term2(bar)}, + FFF = {is_nonfoo_exact(foo), is_nonfoo_term1(foo), is_nonfoo_term2(foo)}, + TTT = {is_nonfoo_exact(bar), is_nonfoo_term1(bar), is_nonfoo_term2(bar)}, + Tup = {a, {42}, [c]}, + TTT = {is_tuple_skel(Tup), is_tuple_exact(Tup), is_tuple_term(Tup)}, + BNi = <<42>>, + TTT = {is_bin_exact(BNi), is_bin_term1(BNi), is_bin_term2(BNi)}, + BNf = <<42/float>>, + FFF = {is_bin_exact(BNf), is_bin_term1(BNf), is_bin_term2(BNf)}, + ok. + +test_sofs_func() -> + L = [0, 0.0], + ok = sofs_func(L, L, L). + +%%-------------------------------------------------------------------- +%% Test for comparison operators used in body calls + +eq_exact_call(X, Y) -> X =:= Y. + +ne_exact_call(X, Y) -> X =/= Y. + +eq_call(X, Y) -> X == Y. + +ne_call(X, Y) -> X /= Y. + +%%-------------------------------------------------------------------- +%% Tests for comparison operators used as guards + +eq_exact_guard(X, Y) when X =:= Y -> true; +eq_exact_guard(_, _) -> false. + +ne_exact_guard(X, Y) when X =/= Y -> true; +ne_exact_guard(_, _) -> false. + +eq_guard(X, Y) when X == Y -> true; +eq_guard(_, _) -> false. + +ne_guard(X, Y) when X /= Y -> true; +ne_guard(_, _) -> false. + +%%-------------------------------------------------------------------- + +is_zero_int(N) when N =:= 0 -> true; +is_zero_int(_) -> false. + +is_nonzero_int(N) when N =/= 0 -> true; +is_nonzero_int(_) -> false. + +is_zero_num(N) when N == 0 -> true; +is_zero_num(_) -> false. + +is_nonzero_num(N) when N /= 0 -> true; +is_nonzero_num(_) -> false. + +%%-------------------------------------------------------------------- +%% There should not really be any difference in the generated code +%% for the following three functions. + +is_foo_exact(A) when A =:= foo -> true; +is_foo_exact(_) -> false. + +is_foo_term1(A) when A == foo -> true; +is_foo_term1(_) -> false. + +is_foo_term2(A) when foo == A -> true; +is_foo_term2(_) -> false. + +%%-------------------------------------------------------------------- +%% Same for these cases + +is_nonfoo_exact(A) when A =/= foo -> true; +is_nonfoo_exact(_) -> false. + +is_nonfoo_term1(A) when A /= foo -> true; +is_nonfoo_term1(_) -> false. + +is_nonfoo_term2(A) when foo /= A -> true; +is_nonfoo_term2(_) -> false. + +%%-------------------------------------------------------------------- + +is_tuple_skel({A,{B},[C]}) when is_atom(A), is_integer(B), is_atom(C) -> true; +is_tuple_skel(T) when is_tuple(T) -> false. + +is_tuple_exact(T) when T =:= {a,{42},[c]} -> true; +is_tuple_exact(T) when is_tuple(T) -> false. + +is_tuple_term(T) when T == {a,{42.0},[c]} -> true; +is_tuple_term(T) when is_tuple(T) -> false. + +%%-------------------------------------------------------------------- +%% But for binaries the treatment has to be different, due to the need +%% for construction of the binary in the guard. + +is_bin_exact(B) when B =:= <<42>> -> true; +is_bin_exact(_) -> false. + +is_bin_term1(B) when B == <<42>> -> true; +is_bin_term1(_) -> false. + +is_bin_term2(B) when <<42>> == B -> true; +is_bin_term2(_) -> false. + +%%-------------------------------------------------------------------- +%% a test from sofs.erl which failed at some point + +sofs_func([X | Ts], X0, L) when X /= X0 -> + sofs_func(Ts, X, L); +sofs_func([X | _Ts], X0, _L) when X == X0 -> + ok; +sofs_func([], _X0, L) -> + L. diff --git a/lib/hipe/test/basic_SUITE_data/basic_exceptions.erl b/lib/hipe/test/basic_SUITE_data/basic_exceptions.erl new file mode 100644 index 0000000000..229a0516dc --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_exceptions.erl @@ -0,0 +1,465 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests that raise exceptions and catch them. +%%%------------------------------------------------------------------- +-module(basic_exceptions). + +-export([test/0, test_catches/0]). + +%% functions used as arguments to spawn/3 +-export([bad_guy/2]). + +test() -> + ok = test_catch_exit(42), + ok = test_catch_throw(42), + ok = test_catch_element(), + ok = test_catch_crash(), + ok = test_catch_empty(), + ok = test_catch_merge(), + ok = test_catches_merged(), + ok = test_pending_errors(), + ok = test_bad_fun_call(), + ok = test_guard_bif(), + ok. + +%%-------------------------------------------------------------------- +%% Written in 2001 by Erik Johansson. + +test_catches() -> + ExitBar = {'EXIT', bar}, + L1 = [ExitBar, ok, ExitBar, {ok, ExitBar}], + L1 = [t1(), t2(), t3(), t4()], + badarith = (catch element(1, element(2, t5(a, b)))), + L2 = [42, ExitBar, ExitBar, {no_exception, ok}], + L2 = [t5(21, 21), t6(), t7(), t8()], + ok. + +t1() -> + catch foo(). + +t2() -> + V = (catch ok()), + s(), + V. + +t3() -> + V = (catch foo()), + V. + +t4() -> + V1 = ok(), + V2 = (catch foo()), + {V1, V2}. + +t5(A, B) -> + catch A + B. + +t6() -> + catch {no_exception, ok(), foo()}. + +t7() -> + catch {no_exception, foo(), ok()}. + +t8() -> + catch {no_exception, ok()}. + +foo() -> + s(), + exit(bar). + +ok() -> s(), ok. + +s() -> nada. + +%%-------------------------------------------------------------------- + +test_catch_exit(N) -> + {'EXIT', N} = (catch exit(N)), + {'EXIT', 42} = (catch exit(42)), + 42 = try exit(N) catch exit:R1 -> R1 end, + 42 = try exit(42) catch exit:R2 -> R2 end, + ok. + +%%-------------------------------------------------------------------- + +test_catch_throw(N) -> + N = (catch throw(N)), + 42 = (catch throw(42)), + 42 = try throw(N) catch throw:R1 -> R1 end, + 42 = try throw(42) catch throw:R2 -> R2 end, + ok. + +%%-------------------------------------------------------------------- + +test_catch_element() -> + 'EXIT' = test_catch_element([]), + 'EXIT' = test_catch_element(42), + ok. + +test_catch_element(N) -> + element(1, catch element(N, {1,2,3,4,5,6,7,8,9,10,11})). + +%%-------------------------------------------------------------------- + +-define(try_match(E), + catch ?MODULE:non_existing(), + {'EXIT', {{badmatch, nomatch}, _}} = (catch E = no_match())). + +test_catch_crash() -> + ?try_match(a), + ?try_match(42), + ?try_match({a, b, c}), + ?try_match([]), + ?try_match(1.0), + ok. + +no_match() -> nomatch. + +%% small_test() -> +%% catch ?MODULE:non_existing(), +%% io:format("Before\n",[]), +%% hipe_bifs:show_nstack(self()), +%% io:format("After\n",[]), +%% garbage_collect(). + +%%-------------------------------------------------------------------- +%% Tests whether the HiPE compiler optimizes catches in a way that +%% does not result in an infinite loop. +%%-------------------------------------------------------------------- + +test_catch_empty() -> + badmatch(). + +badmatch() -> + Big = ret_big(), + Float = ret_float(), + catch a = Big, + catch b = Float, + ok = case Big of Big -> ok end, + ok = case Float of Float -> ok end, + ok. + +ret_big() -> + 329847987298478924982978248748729829487298292982972978239874. + +ret_float() -> + 3.1415927. + +%%-------------------------------------------------------------------- +%% Test that shows how BEAM can merge catch-end blocks that belong to +%% different catch-start instructions. Written by Richard Carlsson. +%%-------------------------------------------------------------------- + +test_catch_merge() -> + merge(get(whatever)). + +merge(foo=X) -> + catch f(X), + catch g(X); +merge(X) -> + catch f(X), + catch g(X). + +f(_) -> ok. + +g(_) -> ok. + +%%-------------------------------------------------------------------- +%% Written by Tobias Lindahl. + +test_catches_merged() -> + {'EXIT', _} = merged_catches(foo), + {'EXIT', {badarith, _}} = merged_catches(bar), + {'EXIT', _} = merged_catches(baz), + ok. + +merged_catches(X) -> + case X of + foo -> catch fail1(0); + bar -> catch {catch(1 = X), fail2(0)}; + baz -> catch fail3(0) + end. + +fail1(X) -> 1/X. + +fail2(X) -> 1/X. + +fail3(X) -> 1/X. + +%%-------------------------------------------------------------------- +%% Taken from exception_SUITE.erl +%%-------------------------------------------------------------------- + +test_pending_errors() -> + error_logger:tty(false), % disable printouts of error reports + pending_errors(). + +%% Test various exceptions, in the presence of a previous error +%% suppressed in a guard. +pending_errors() -> + pending(e_badmatch, {badmatch, b}), + pending(x, function_clause), + pending(e_case, {case_clause, xxx}), + pending(e_if, if_clause), + %% pending(e_badarith, badarith), + %% pending(e_undef, undef), + pending(e_timeoutval, timeout_value), + %% pending(e_badarg, badarg), + %% pending(e_badarg_spawn, badarg), + ok. + +bad_guy(pe_badarith, Other) when Other+1 =:= 0 -> % badarith (suppressed) + ok; +bad_guy(pe_badarg, Other) when length(Other) > 0 -> % badarg (suppressed) + ok; +bad_guy(_, e_case) -> + case xxx() of + ok -> ok + end; % case_clause +bad_guy(_, e_if) -> + B = b(), + if + a == B -> ok + end; % if_clause +%% bad_guy(_, e_badarith) -> +%% 1+b; % badarith +bad_guy(_, e_undef) -> + non_existing_module:foo(); % undef +bad_guy(_, e_timeoutval) -> + receive + after gazonk -> ok % timeout_value + end; +bad_guy(_, e_badarg) -> + node(xxx); % badarg +bad_guy(_, e_badarg_spawn) -> + spawn({}, {}, {}); % badarg +bad_guy(_, e_badmatch) -> + a = b(). % badmatch + +xxx() -> xxx. + +b() -> b. + +pending(Arg, Expected) -> + pending(pe_badarith, Arg, Expected), + pending(pe_badarg, Arg, Expected). + +pending(First, Second, Expected) -> + pending_catched(First, Second, Expected), + pending_exit_message([First, Second], Expected). + +pending_catched(First, Second, Expected) -> + %% ok = io:format("Catching bad_guy(~p, ~p)\n", [First, Second]), + case catch bad_guy(First, Second) of + {'EXIT', Reason} -> + pending(Reason, bad_guy, [First, Second], Expected); + Other -> + exit({not_exit, Other}) + end. + +pending_exit_message(Args, Expected) -> + %% ok = io:format("Trapping exits from spawn_link(~p, ~p, ~p)\n", + %% [?MODULE, bad_guy, Args]), + process_flag(trap_exit, true), + Pid = spawn_link(?MODULE, bad_guy, Args), + receive + {'EXIT', Pid, Reason} -> + pending(Reason, bad_guy, Args, Expected); + Other -> + exit({unexpected_message, Other}) + after 10000 -> + exit(timeout) + end, + process_flag(trap_exit, false). + +%% pending({badarg, [{erlang,Bif,BifArgs},{?MODULE,Func,Arity}|_]}, +%% Func, Args, _Code) +%% when atom(Bif), list(BifArgs), length(Args) =:= Arity -> +%% ok; +pending({badarg,Trace}, _, _, _) when is_list(Trace) -> + ok; +%% pending({undef,[{non_existing_module,foo,[]}|_]}, _, _, _) -> +%% ok; +pending({undef,Trace}, _, _, _) when is_list(Trace) -> + ok; +%% pending({function_clause,[{?MODULE,Func,Args}|_]}, Func, Args, _Code) -> +%% ok; +pending({function_clause,Trace}, _, _, _) when is_list(Trace) -> + ok; +%% pending({Code,[{?MODULE,Func,Arity}|_]}, Func, Args, Code) +%% when length(Args) =:= Arity -> +%% ok; +pending({Code,Trace}, _, _, Code) when is_list(Trace) -> + ok; +pending(Reason, _Function, _Args, _Code) -> + exit({bad_exit_reason, Reason}). + +%%-------------------------------------------------------------------- +%% Taken from fun_SUITE.erl +%% +%% Checks correct exception throwing when calling a bad fun. +%%-------------------------------------------------------------------- + +test_bad_fun_call() -> + ok = bad_call_fc(42), + ok = bad_call_fc(xx), + ok = bad_call_fc({}), + ok = bad_call_fc({1}), + ok = bad_call_fc({1,2,3}), + ok = bad_call_fc({1,2,3}), + ok = bad_call_fc({1,2,3,4}), + ok = bad_call_fc({1,2,3,4,5,6}), + ok = bad_call_fc({1,2,3,4,5}), + ok = bad_call_fc({1,2}), + ok. + +bad_call_fc(Fun) -> + Args = [some, stupid, args], + Res = (catch Fun(Fun(Args))), + case Res of + {'EXIT', {{badfun, Fun} ,_Where}} -> + ok; %% = io:format("~p(~p) -> ~p\n", [Fun, Args, Res]); + Other -> + io:format("~p(~p) -> ~p\n", [Fun, Args, Res]), + exit({bad_result, Other}) + end. + +%%-------------------------------------------------------------------- +%% Taken from guard_SUITE.erl +%% +%% Tests correct handling of exceptions by calling guard BIFs with +%% nasty (but legal arguments). +%%-------------------------------------------------------------------- + +test_guard_bif() -> + Big = -237849247829874297658726487367328971246284736473821617265433, + Float = 387924.874, + + %% Succeding use of guard bifs. + + try_gbif('abs/1', Big, -Big), + try_gbif('float/1', Big, float(Big)), + try_gbif('trunc/1', Float, 387924.0), + try_gbif('round/1', Float, 387925.0), + try_gbif('length/1', [], 0), + + try_gbif('length/1', [a], 1), + try_gbif('length/1', [a, b], 2), + try_gbif('length/1', lists:seq(0, 31), 32), + + try_gbif('hd/1', [a], a), + try_gbif('hd/1', [a, b], a), + + try_gbif('tl/1', [a], []), + try_gbif('tl/1', [a, b], [b]), + try_gbif('tl/1', [a, b, c], [b, c]), + + try_gbif('size/1', {}, 0), + try_gbif('size/1', {a}, 1), + try_gbif('size/1', {a, b}, 2), + try_gbif('size/1', {a, b, c}, 3), + try_gbif('size/1', list_to_binary([]), 0), + try_gbif('size/1', list_to_binary([1]), 1), + try_gbif('size/1', list_to_binary([1, 2]), 2), + try_gbif('size/1', list_to_binary([1, 2, 3]), 3), + + try_gbif('element/2', {x}, {1, x}), + try_gbif('element/2', {x, y}, {1, x}), + try_gbif('element/2', {x, y}, {2, y}), + + try_gbif('self/0', 0, self()), + try_gbif('node/0', 0, node()), + try_gbif('node/1', self(), node()), + + %% Failing use of guard bifs. + + try_fail_gbif('abs/1', Big, 1), + try_fail_gbif('abs/1', [], 1), + + try_fail_gbif('float/1', Big, 42), + try_fail_gbif('float/1', [], 42), + + try_fail_gbif('trunc/1', Float, 0.0), + try_fail_gbif('trunc/1', [], 0.0), + + try_fail_gbif('round/1', Float, 1.0), + try_fail_gbif('round/1', [], a), + + try_fail_gbif('length/1', [], 1), + try_fail_gbif('length/1', [a], 0), + try_fail_gbif('length/1', a, 0), + try_fail_gbif('length/1', {a}, 0), + + try_fail_gbif('hd/1', [], 0), + try_fail_gbif('hd/1', [a], x), + try_fail_gbif('hd/1', x, x), + + try_fail_gbif('tl/1', [], 0), + try_fail_gbif('tl/1', [a], x), + try_fail_gbif('tl/1', x, x), + + try_fail_gbif('size/1', {}, 1), + try_fail_gbif('size/1', [], 0), + try_fail_gbif('size/1', [a], 1), + try_fail_gbif('size/1', fun() -> 1 end, 0), + try_fail_gbif('size/1', fun() -> 1 end, 1), + + try_fail_gbif('element/2', {}, {1, x}), + try_fail_gbif('element/2', {x}, {1, y}), + try_fail_gbif('element/2', [], {1, z}), + + try_fail_gbif('self/0', 0, list_to_pid("<0.0.0>")), + try_fail_gbif('node/0', 0, xxxx), + try_fail_gbif('node/1', self(), xxx), + try_fail_gbif('node/1', yyy, xxx), + ok. + +try_gbif(Id, X, Y) -> + case guard_bif(Id, X, Y) of + {Id, X, Y} -> + %% io:format("guard_bif(~p, ~p, ~p) -- ok\n", [Id, X, Y]); + ok; + Other -> + ok = io:format("guard_bif(~p, ~p, ~p) -- bad result: ~p\n", + [Id, X, Y, Other]), + exit({bad_result,try_gbif}) + end. + +try_fail_gbif(Id, X, Y) -> + case catch guard_bif(Id, X, Y) of + %% {'EXIT', {function_clause,[{?MODULE,guard_bif,[Id,X,Y]}|_]}} -> + {'EXIT', {function_clause,_}} -> % in HiPE, a trace is not generated + %% io:format("guard_bif(~p, ~p, ~p) -- ok\n", [Id,X,Y]); + ok; + Other -> + ok = io:format("guard_bif(~p, ~p, ~p) -- bad result: ~p\n", + [Id, X, Y, Other]), + exit({bad_result,try_fail_gbif}) + end. + +guard_bif('abs/1', X, Y) when abs(X) == Y -> + {'abs/1', X, Y}; +guard_bif('float/1', X, Y) when float(X) == Y -> + {'float/1', X, Y}; +guard_bif('trunc/1', X, Y) when trunc(X) == Y -> + {'trunc/1', X, Y}; +guard_bif('round/1', X, Y) when round(X) == Y -> + {'round/1', X, Y}; +guard_bif('length/1', X, Y) when length(X) == Y -> + {'length/1', X, Y}; +guard_bif('hd/1', X, Y) when hd(X) == Y -> + {'hd/1', X, Y}; +guard_bif('tl/1', X, Y) when tl(X) == Y -> + {'tl/1', X, Y}; +guard_bif('size/1', X, Y) when size(X) == Y -> + {'size/1', X, Y}; +guard_bif('element/2', X, {Pos, Expected}) when element(Pos, X) == Expected -> + {'element/2', X, {Pos, Expected}}; +guard_bif('self/0', X, Y) when self() == Y -> + {'self/0', X, Y}; +guard_bif('node/0', X, Y) when node() == Y -> + {'node/0', X, Y}; +guard_bif('node/1', X, Y) when node(X) == Y -> + {'node/1', X, Y}. diff --git a/lib/hipe/test/basic_SUITE_data/basic_floats.erl b/lib/hipe/test/basic_SUITE_data/basic_floats.erl new file mode 100644 index 0000000000..eec175075a --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_floats.erl @@ -0,0 +1,180 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests that manipulate floating point numbers. +%%%------------------------------------------------------------------- +-module(basic_floats). + +-export([test/0]). +-export([test_fmt_double_fpe_leak/0]). % suppress the unused warning + +test() -> + ok = test_arith_ops(), + ok = test_fp_ebb(), + ok = test_fp_phi(), + ok = test_big_bad_float(), + ok = test_catch_bad_fp_arith(), + ok = test_catch_fp_conv(), + ok = test_fp_with_fp_exceptions(), + %% ok = test_fmt_double_fpe_leak(), % this requires printing + ok. + +%%-------------------------------------------------------------------- + +test_arith_ops() -> + E = 2.5617, + 5.703200000000001 = add(E), + 0.5798000000000001 = sub(E), + 8.047580550000001 = mult(E), + -6.023e23 = negate(6.023e23), + ok. + +add(X) -> + 3.1415 + X. + +sub(X) -> + 3.1415 - X. + +mult(X) -> + 3.1415 * X. + +%% tests the translation of the fnegate BEAM instruction. +negate(X) -> + - (X + 0.0). + +%%-------------------------------------------------------------------- +%% Test the construction of overlapping extended basic blocks where +%% BEAM has constructed one and hipe_icode_fp constructs the other. +%%-------------------------------------------------------------------- + +test_fp_ebb() -> + 1.0 = foo(2 * math:pi()), + 1.0 = bar(2 * math:pi()), + ok. + +foo(X) -> + X / (2 * math:pi()). + +bar(X) -> + F = float_two(), + case F < 3.0 of + true -> (X * F) / ((2 * F) * math:pi()); + false -> weird + end. + +float_two() -> + 2.0. + +%%-------------------------------------------------------------------- + +test_fp_phi() -> + 10 = fp_phi(10, 100), + undefined = fp_phi(1.1e302, 0.000000001), + ok. + +fp_phi(A, B) -> + case catch A / B of + {'EXIT', _Reason} -> undefined; + _ -> round(100 * (A / B)) + end. + +%%-------------------------------------------------------------------- + +-define(BS, "93904329458954829589425849258998492384932849328493284932849328493284932389248329432932483294832949245827588578423578435783475834758375837580745807304258924584295924588459834958349589348589345934859384958349583945893458934859438593485995348594385943859438593458934589345938594385934859483958348934589435894859485943859438594594385938459438595034950439504395043950495043593485943758.0"). + +test_big_bad_float() -> + ok = try f2l(?BS) catch error:badarg -> ok end, + ok = case catch f2l(?BS) of {'EXIT', {badarg, _}} -> ok end, + ok. + +f2l(F) -> + float_to_list(list_to_float(F)). + +%%-------------------------------------------------------------------- +%% Tests catching of floating point bad arithmetic. + +test_catch_bad_fp_arith() -> + 5.7 = f(2.56), + {'EXIT', {badarith, _}} = bad_arith(9.9), + ok. + +f(F) when is_float(F) -> F + 3.14. + +bad_arith(F) when is_float(F) -> + catch F * 1.70000e+308. + +%%-------------------------------------------------------------------- +%% Tests proper catching of exceptions due to illegal convertion of +%% bignums to floating point numbers. + +test_catch_fp_conv() -> + F = 1.7e308, %% F is a number very close to a maximum float. + ok = big_arith(F), + ok = big_const_float(F), + ok. + +big_arith(F) -> + I = trunc(F), + {'EXIT', {badarith, _}} = big_int_arith(I), + ok. + +big_int_arith(I) when is_integer(I) -> + catch(3.0 + 2*I). + +big_const_float(F) -> + I = trunc(F), + badarith = try (1/(2*I)) catch error:Err -> Err end, + _ = 2/I, + {'EXIT', _} = (catch 4/(2*I)), + ok. + +%%-------------------------------------------------------------------- +%% Forces floating point exceptions and tests that subsequent, legal, +%% operations are calculated correctly. + +test_fp_with_fp_exceptions() -> + 0.0 = math:log(1.0), + badarith = try math:log(float_minus_one()) catch error:E1 -> E1 end, + 0.0 = math:log(1.0), + badarith = try math:log(float_zero()) catch error:E2 -> E2 end, + 0.0 = math:log(1.0), + %% An old-fashioned exception here just so as to test this case also + {'EXIT', _} = (catch fp_mult(3.23e133, 3.57e257)), + 0.0 = math:log(1.0), + badarith = try fp_div(5.0, 0.0) catch error:E3 -> E3 end, + 0.0 = math:log(1.0), + ok. + +fp_mult(X, Y) -> X * Y. + +fp_div(X, Y) -> X / Y. + +%% The following two function definitions appear here just to shut +%% off 'expression will fail with a badarg' warnings from the compiler + +float_zero() -> 0.0. + +float_minus_one() -> -1.0. + +%%-------------------------------------------------------------------- +%% Test that erl_printf_format.c:fmt_double() does not leak pending FP +%% exceptions to subsequent code. This used to break x87 FP code on +%% 32-bit x86. Based on a problem report from Richard Carlsson. + +test_fmt_double_fpe_leak() -> + test_fmt_double_fpe_leak(float_zero(), int_two()), + ok. + +%% We need the specific sequence of erlang:display/1 on a float that +%% triggers faulting ops in fmt_double() followed by a simple FP BIF. +%% We also need to repeat this at least three times. +test_fmt_double_fpe_leak(X, Y) -> + erlang:display(X), _ = math:log10(Y), + erlang:display(X), _ = math:log10(Y), + erlang:display(X), _ = math:log10(Y), + erlang:display(X), _ = math:log10(Y), + erlang:display(X), + math:log10(Y). + +int_two() -> 2. diff --git a/lib/hipe/test/basic_SUITE_data/basic_fun.erl b/lib/hipe/test/basic_SUITE_data/basic_fun.erl new file mode 100644 index 0000000000..18ba7fdb3f --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_fun.erl @@ -0,0 +1,124 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Tests for correct handling of funs. +%%%------------------------------------------------------------------- +-module(basic_fun). + +-export([test/0]). + +-export([dummy_foo/4, add1/1, test_fun03/0]). + +test() -> + ok = test_calls(), + ok = test_is_function(), + ok = test_is_function2(), + ok. + +%%-------------------------------------------------------------------- +%% Tests function and fun calls. + +test_calls() -> + ok = test_apply_call(?MODULE, dummy_foo), + ok = test_fun_call(fun dummy_foo/4), + ok = test_fun_call(fun ?MODULE:dummy_foo/4), + ok. + +test_apply_call(M, F) -> + M:F(bar, 42, foo, 17). + +test_fun_call(Fun) -> + Fun(bar, 42, foo, 17). + +dummy_foo(_, _, foo, _) -> ok. + +%%-------------------------------------------------------------------- +%% Tests handling of funs out of exported functions and 2-tuple funs. + +test_fun03() -> + MFPair = add1_as_2tuple(), + 4712 = do_call(add1_as_export(), 4711), + {badfun, MFPair} = try do_call(MFPair, 88) catch error:Err -> Err end, + true = do_guard(add1_as_export()), + false = do_guard(MFPair), % 2-tuples do not satisfy is_function/1 + ok. + +do_call(F, X) -> F(X). + +do_guard(F) when is_function(F) -> true; +do_guard(_) -> false. + +add1_as_export() -> fun ?MODULE:add1/1. + +add1_as_2tuple() -> {?MODULE, add1}. + +add1(X) -> X+1. + +%%-------------------------------------------------------------------- +%% Tests the is_function guard and BIF. + +test_is_function() -> + Fun = fun (X, foo) -> dummy_foo(X, mnesia_lib, foo, [X]) end, + ok = test_when_guard(Fun), + ok = test_if_guard(Fun), + ok. + +test_when_guard(X) when is_function(X) -> ok. + +test_if_guard(X) -> + if is_function(X) -> ok; + true -> weird + end. + +%%-------------------------------------------------------------------- +%% Tests the is_function2 guard and BIF. + +test_is_function2() -> + ok = test_guard(), + ok = test_guard2(), + ok = test_call(), + ok. + +test_guard() -> + zero_fun = test_f2(fun () -> ok end), + unary_fun = test_f2(fun(X) -> X end), + binary_fun = test_f2(fun (X, Y) -> {X, Y} end), + no_fun = test_f2(gazonk), + ok. + +test_f2(Fun) when is_function(Fun, 0) -> + zero_fun; +test_f2(Fun) when is_function(Fun, 1) -> + unary_fun; +test_f2(Fun) when is_function(Fun, 2) -> + binary_fun; +test_f2(_) -> + no_fun. + +test_guard2() -> + zero_fun = test_f2_n(fun () -> ok end, 0), + unary_fun = test_f2_n(fun (X) -> X end, 1), + binary_fun = test_f2_n(fun (X, Y) -> {X, Y} end, 2), + no_fun = test_f2_n(gazonk, 0), + ok. + +test_f2_n(F, N) when is_function(F, N) -> + case N of + 0 -> zero_fun; + 1 -> unary_fun; + 2 -> binary_fun + end; +test_f2_n(_, _) -> + no_fun. + +test_call() -> + true = test_fn2(fun (X, Y) -> {X,Y} end, 2), + false = test_fn2(fun (X, Y) -> {X,Y} end, 3), + false = test_fn2(gazonk, 2), + {'EXIT', {badarg, _TR1}} = (catch test_fn2(gazonk, gazonk)), + {'EXIT', {badarg, _TR2}} = (catch test_fn2(fun (X, Y) -> {X, Y} end, gazonk)), + ok. + +test_fn2(F, N) -> + is_function(F, N). diff --git a/lib/hipe/test/basic_SUITE_data/basic_guards.erl b/lib/hipe/test/basic_SUITE_data/basic_guards.erl new file mode 100644 index 0000000000..81eeed7c3b --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_guards.erl @@ -0,0 +1,164 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests for correct handling of guards and guard BIFs. +%%%------------------------------------------------------------------- +-module(basic_guards). + +-export([test/0]). +%% Prevent the inlining of the following functions +-export([bad_arith/0, bad_tuple/0, is_strange_guard/0]). + +test() -> + ok = guard0(4.2), + ok = guard1([foo]), + ok = test_guard2(), + ok = test_guard3(), + ok = test_guard4(), + ok = test_is_boolean(), + ok = test_bad_guards(), + ok. + +%%-------------------------------------------------------------------- + +guard0(X) when X /= 0, is_float(X) -> + ok. + +guard1(X) when is_atom(X) orelse is_float(X) -> + error1; +guard1(X) when is_reference(hd(X)) -> + error2; +guard1(X) when is_integer(hd(X)) -> + error3; +guard1(X) when hd(X) == foo -> + ok. + +%%-------------------------------------------------------------------- + +test_guard2() -> + ok1 = guard2(true), + not_boolean = guard2(42), + ok2 = guard2(false), + ok. + +guard2(X) when X -> % gets transformed to: is_boolean(X), X =:= true + ok1; +guard2(X) when X =:= false -> + ok2; +guard2(_) -> + not_boolean. + +%%-------------------------------------------------------------------- + +-define(is_foo(X), (is_atom(X) or (is_tuple(X) and (element(1, X) =:= 'foo')))). + +test_guard3() -> + no = f('foo'), + yes = f({'foo', 42}), + no = f(42), + ok. + +f(X) when ?is_foo(X) -> yes; +f(_) -> no. + +%%-------------------------------------------------------------------- + +-define(EXT_REF, <<131,114,0,3,100,0,19,114,101,102,95,116,101,115,116,95,98,117,103,64,103,111,114,98,97,103,2,0,0,0,125,0,0,0,0,0,0,0,0>>). + +test_guard4() -> + yes = is_ref(make_ref()), + no = is_ref(gazonk), + yes = is_ref(an_external_ref(?EXT_REF)), + ok. + +is_ref(Ref) when is_reference(Ref) -> yes; +is_ref(_Ref) -> no. + +an_external_ref(Bin) -> + binary_to_term(Bin). + +%%-------------------------------------------------------------------- + +test_is_boolean() -> + ok = is_boolean_in_if(), + ok = is_boolean_in_guard(). + +is_boolean_in_if() -> + ok1 = tif(true), + ok2 = tif(false), + not_bool = tif(other), + ok. + +is_boolean_in_guard() -> + ok = tg(true), + ok = tg(false), + not_bool = tg(other), + ok. + +tif(V) -> + Yes = yes(), %% just to prevent the optimizer removing this + if + %% the following line generates an is_boolean instruction + V, Yes == yes -> + %% while the following one does not (?!) + %% Yes == yes, V -> + ok1; + not(not(not(V))) -> + ok2; + V -> + ok3; + true -> + not_bool + end. + +tg(V) when is_boolean(V) -> + ok; +tg(_) -> + not_bool. + +yes() -> yes. + +%%-------------------------------------------------------------------- +%% original test by Bjorn G + +test_bad_guards() -> + ok = bad_arith(), + ok = bad_tuple(), + ok = is_strange_guard(), + ok. + +bad_arith() -> + 13 = bad_arith1(1, 12), + 42 = bad_arith1(1, infinity), + 42 = bad_arith1(infinity, 1), + 42 = bad_arith2(infinity, 1), + 42 = bad_arith3(inf), + 42 = bad_arith4(infinity, 1), + ok. + +bad_arith1(T1, T2) when (T1 + T2) < 17 -> T1 + T2; +bad_arith1(_, _) -> 42. + +bad_arith2(T1, T2) when (T1 * T2) < 17 -> T1 * T2; +bad_arith2(_, _) -> 42. + +bad_arith3(T) when (bnot T) < 17 -> T; +bad_arith3(_) -> 42. + +bad_arith4(T1, T2) when (T1 bsr T2) < 10 -> T1 bsr T2; +bad_arith4(_, _) -> 42. + +bad_tuple() -> + error = bad_tuple1(a), + error = bad_tuple1({a, b}), + x = bad_tuple1({x, b}), + y = bad_tuple1({a, b, y}), + ok. + +bad_tuple1(T) when element(1, T) =:= x -> x; +bad_tuple1(T) when element(3, T) =:= y -> y; +bad_tuple1(_) -> error. + +is_strange_guard() when is_tuple({1, bar, length([1, 2, 3, 4]), self()}) -> ok; +is_strange_guard() -> error. diff --git a/lib/hipe/test/basic_SUITE_data/basic_inline_function.erl b/lib/hipe/test/basic_SUITE_data/basic_inline_function.erl new file mode 100644 index 0000000000..4c08064670 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_inline_function.erl @@ -0,0 +1,73 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests that depend on the compiler inliner being turned on. +%%%------------------------------------------------------------------- +-module(basic_inline_function). + +-export([test/0]). + +-compile({inline, [{to_objects, 3}]}). + +test() -> + ok = test_inline_match(), + ok. + +%%-------------------------------------------------------------------- + +test_inline_match() -> + bad_object = test1(a, {binary, foo, set}, c), + bad_object = test2(a, {binary, foo, set}, c), + bad_object = test3(a, {binary, foo, set}, c), + ok. + +%% Inlined +test1(KeysObjs, C, Ts) -> + case catch to_objects(KeysObjs, C, Ts) of + {'EXIT', _} -> + bad_object; + ok -> + ok + end. + +%% "Inlined" by hand +test2(KeysObjs, C, _Ts) -> + case catch (case C of + {binary, _, set} -> + <<_ObjSz0:32, _T/binary>> = KeysObjs; + _ -> ok + end) of + {'EXIT', _} -> + bad_object; + ok -> + ok + end. + +%% Not inlined +test3(KeysObjs, C, Ts) -> + case catch fto_objects(KeysObjs, C, Ts) of + {'EXIT', _} -> + bad_object; + ok -> + ok + end. + +%% Inlined. +to_objects(Bin, {binary, _, set}, _Ts) -> + <<_ObjSz0:32, _T/binary>> = Bin, + ok; +to_objects(<<_ObjSz0:32, _T/binary>> ,_, _) -> + ok; +to_objects(_Bin, _, _Ts) -> + ok. + +%% Not Inlined. +fto_objects(Bin, {binary, _, set}, _Ts) -> + <<_ObjSz0:32, _T/binary>> = Bin, + ok; +fto_objects(<<_ObjSz0:32, _T/binary>> ,_,_) -> + ok; +fto_objects(_Bin, _, _Ts) -> + ok. + diff --git a/lib/hipe/test/basic_SUITE_data/basic_inline_module.erl b/lib/hipe/test/basic_SUITE_data/basic_inline_module.erl new file mode 100644 index 0000000000..306c6a39ce --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_inline_module.erl @@ -0,0 +1,31 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests that depend on the compiler inliner being turned on. +%%%------------------------------------------------------------------- +-module(basic_inline_module). + +-export([test/0]). + +-compile([inline]). %% necessary for these tests + +test() -> + ok = test_case_end_atom(), + ok. + +%%-------------------------------------------------------------------- +%% Tests whether the translation of a case_end instruction works even +%% when an exception (no matching case pattern) is to be raised. + +test_case_end_atom() -> + {'EXIT',{{case_clause,some_atom},_Trace}} = (catch test_case_stm_inlining()), + ok. + +test_case_stm_inlining() -> + case some_atom() of + another_atom -> strange_result + end. + +some_atom() -> + some_atom. diff --git a/lib/hipe/test/basic_SUITE_data/basic_issues_beam.erl b/lib/hipe/test/basic_SUITE_data/basic_issues_beam.erl new file mode 100644 index 0000000000..73367c5c45 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_issues_beam.erl @@ -0,0 +1,326 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains code examples, mostly taken from the mailing list, that +%%% crashed the BEAM compiler or gave an internal error at some point. +%%%------------------------------------------------------------------- +-module(basic_issues_beam). + +-export([test/0]). + +test() -> + ok = test_crash_R10_hinde(), + ok = test_error_R10_mander(), + ok = test_error_R11_bjorklund(), + ok = test_error_R11_rath(), + ok = test_error_R12_empty_bin_rec(), + ok = test_bug_R12_cornish(), + ok = test_crash_R12_morris(), + ok = test_error_R13_almeida(), + ok = test_error_R13B01_fisher(), + ok = test_error_R13B01_sawatari(), + ok = test_error_R13B01_whongo(), + ok = test_error_R16B03_norell(), + ok = test_error_try_wings(), + ok. + +%%-------------------------------------------------------------------- +%% Fisher R10 compiler crash +%%-------------------------------------------------------------------- + +-record(r, {a, b, c}). + +test_crash_R10_hinde() -> + rec_R10_hinde(#r{}). + +rec_R10_hinde(As) -> + case As of + A when A#r.b == ""; A#r.b == undefined -> ok; + _ -> error + end. + +%%-------------------------------------------------------------------- +%% From: Peter-Henry Mander +%% Date: 27 Jan, 2005 +%% +%% I managed to isolate a non-critical BEAM compilation error +%% (internal error in v3_codegen) when compiling the following code: +%%-------------------------------------------------------------------- + +test_error_R10_mander() -> + try just_compile_me_R10() catch _:_ -> ok end. + +just_compile_me_R10() -> + URI_Before = + {absoluteURI, + {scheme, fun() -> nil end}, + {hier_part, + {net_path, + {srvr, + {userinfo, nil}, + fun() -> nil end}, + nil}, + {port, nil}}}, + {absoluteURI, + {scheme, _}, + {hier_part, + {net_path, + {srvr, + {userinfo, nil}, + _HostportBefore}, + nil}, + {port, nil}}} = URI_Before, + %% ... some funky code ommitted, not relevant ... + {absoluteURI, + {scheme, _}, + {hier_part, + {net_path, + {srvr, + {userinfo, nil}, + HostportAfter}, + nil}, + {port, nil}}} = URI_Before, + %% NOTE: I intended to write URI_After instead of URI_Before + %% but the accident revealed that when you add the line below, + %% it causes internal error in v3_codegen on compilation + {hostport, {hostname, "HostName"}, {port, nil}} = HostportAfter, + ok. + +%%-------------------------------------------------------------------- +%% From: Martin Bjorklund +%% Date: Aug 16, 2006 +%% +%% I found this compiler bug in R10B-10 and R11B-0. +%% +%% Function -just_compile_me/0-fun-2-/1 refers to undefined label 18 +%% ./bjorklund_R11compiler_bug.erl:none: internal error in beam_clean; +%% crash reason: {{case_clause,{'EXIT',{undefined_label,18}}}, +%% [{compile,'-select_passes/2-anonymous-2-',2}, +%% {compile,'-internal_comp/4-anonymous-1-',2}, +%% {compile,fold_comp,3}, +%% {compile,internal_comp,4}, +%% {compile,internal,3}]} +%%-------------------------------------------------------------------- + +test_error_R11_bjorklund() -> + just_compile_me_R11_bjorklund(). + +just_compile_me_R11_bjorklund() -> + G = fun() -> ok end, + try + G() %% fun() -> ok end + after + fun({A, B}) -> A + B end + end. + +%%-------------------------------------------------------------------- +%% From: Tim Rath +%% Date: Sep 13, 2006 +%% Subject: Compiler bug not quite fixed +%% +%% +%% I saw a compiler bug posted to the list by Martin Bjorklund that +%% appeared to be exactly the problem I'm seeing, and then noticed +%% that this was fixed in R11B-1. Unfortunately, though R11B-1 appears +%% to fix the code submitted by Martin, it does not fix my case. +%% +%% Function -just_compile_me/0-fun-2-/1 refers to undefined label 13 +%% ./rath_R11compiler_bug.erl:none: internal error in beam_clean; +%% crash reason: {{case_clause,{'EXIT',{undefined_label,13}}}, +%% [{compile,'-select_passes/2-anonymous-2-',2}, +%% {compile,'-internal_comp/4-anonymous-1-',2}, +%% {compile,fold_comp,3}, +%% {compile,internal_comp,4}, +%% {compile,internal,3}]} +%%-------------------------------------------------------------------- + +test_error_R11_rath() -> + just_compile_me_R11_rath(). + +just_compile_me_R11_rath() -> + A = {6}, + try + io:fwrite("") + after + fun () -> + fun () -> {_} = A end + end + end. + +%%---------------------------------------------------------------------- +%% Program that crashed the R12B-0 compiler: internal error in v3_codegen +%%---------------------------------------------------------------------- + +-record(rec, {a = <<>> :: binary(), b = 42 :: integer()}). + +test_error_R12_empty_bin_rec() -> + 42 = test_empty_bin_rec(#rec{}), + ok. + +test_empty_bin_rec(R) -> + #rec{a = <<>>} = R, + R#rec.b. + +%%---------------------------------------------------------------------- +%% From: Simon Cornish +%% Date: Jan 13, 2008 +%% +%% The attached Erlang code demonstrates an R12B-0 bug with funs. +%% Compile and evaluate the two die/1 calls for two different failure modes. +%% It seems to me that the live register check for call_fun is off by one. +%%---------------------------------------------------------------------- + +-record(b, {c}). + +test_bug_R12_cornish() -> + {a2, a} = die(a), + {a2, {b, c}} = die({b, c}), + ok. + +die(A) -> + F = fun() -> {ok, A} end, + if A#b.c =:= [] -> one; + true -> + case F() of + {ok, A2} -> {a2, A2}; + _ -> three + end + end. + +%%---------------------------------------------------------------------- +%% From: Hunter Morris +%% Date: Nov 20, 2008 +%% +%% The following code (tested with R12B-4 or R12B-5, vanilla compiler +%% options) produces a compiler crash. It's nonsensical, and I realise +%% that andalso can be quite evil, but it's a crash nonetheless. +%%---------------------------------------------------------------------- + +test_crash_R12_morris() -> + foo(42). + +foo(Bar) when (is_integer(Bar) andalso Bar =:= 0) ; Bar =:= 42 -> + ok. + +%%-------------------------------------------------------------------- +%% From: Paulo Sergio Almeida +%% Date: May 20, 2009 +%% +%% The following code when compiled under R13B gives a compiler error. +%% Function loop/1 refers to undefined label 6 +%% ./almeida_R13compiler_bug.erl:none: internal error in beam_peep; +%% crash reason: {{case_clause,{'EXIT',{undefined_label,6}}}, +%% [{compile,'-select_passes/2-anonymous-2-',2}, +%% {compile,'-internal_comp/4-anonymous-1-',2}, +%%-------------------------------------------------------------------- + +test_error_R13_almeida() -> + self() ! {backup, 42, false}, + loop([]). + +loop(Tids) -> + receive + {backup, Tid, Dumping} -> + case Dumping of + false -> ok; + _ -> receive {logged, Tab, Tid} -> put({log, Tab}, Tid) end + end, + collect(Tid, Tids, []) + end. + +collect(_, _, _) -> ok. + +%%-------------------------------------------------------------------- +%% Fisher R13B01 compiler error +%%-------------------------------------------------------------------- + +test_error_R13B01_fisher() -> + perform_select({foo, "42"}). + +perform_select({Type, Keyval}) -> + try + if is_atom(Type) andalso length(Keyval) > 0 -> ok; + true -> ok + end + catch + _:_ -> fail + end. + +%%-------------------------------------------------------------------- +%% From: Mikage Sawatari +%% Date: Jun 12, 2009 +%% +%% I have the following compilation problem on Erlang R13B01. +%% Compiler reports "Internal consistency check failed". +%%-------------------------------------------------------------------- + +test_error_R13B01_sawatari() -> + test_sawatari([1, null, 3], <<1, 2, 3>>). + +test_sawatari([], _Bin) -> ok; +test_sawatari([H|T], Bin) -> + _ = case H of + null -> <<Bin/binary>>; + _ -> ok + end, + test_sawatari(T, Bin). + +%%-------------------------------------------------------------------- + +test_error_R13B01_whongo() -> + S = "gazonk", + S = orgno_alphanum(S), + ok. + +orgno_alphanum(Cs) -> + [C || C <- Cs, ((C >= $0) andalso (C =< $9)) + orelse ((C >= $a) andalso (C =< $z)) + orelse ((C >= $A) andalso (C =< $Z))]. + +%%-------------------------------------------------------------------- +%% I'm getting an Internal Consistency Check error when attempting to +%% build Wings3D on Mac OS X 10.4.2 (Erlang OTP R10B-6): +%% +%% erlc -pa /ebin +warn_unused_vars -I/include -I ../e3d -W +debug_info +%% '-Dwings_version="0.98.31"' -pa ../ebin -o../ebin wings_color.erl +%% wings_color: function internal_rgb_to_hsv/3+97: +%% Internal consistency check failed - please report this bug. +%% Instruction: {test,is_eq_exact,{f,80},[{x,0},{atom,error}]} +%% Error: {unsafe_instruction,{float_error_state,cleared}}: +%% +%% The problem is the interaction of the 'try' construct with the +%% handling of FP exceptions. +%%-------------------------------------------------------------------- + +test_error_try_wings() -> + %% a call with a possible FP exception + {199.99999999999997, 0.045454545454545456, 44} = rgb_to_hsv(42, 43, 44), + ok. + +rgb_to_hsv(R, G, B) -> + Max = lists:max([R, G, B]), + Min = lists:min([R, G, B]), + V = Max, + {Hue, Sat} = try + {if Min == B -> (G-Min)/(R+G-2.0*Min); + Min == R -> (1.0+(B-Min)/(B+G-2.0*Min)); + Min == G -> (2.0+(R-Min)/(B+R-2.0*Min)) + end * 120, (Max-Min)/Max} + catch + error:badarith -> {undefined, 0.0} + end, + {Hue, Sat, V}. + +%%-------------------------------------------------------------------- +%% From: Ulf Norell +%% Date: Feb 28, 2014 +%% +%% This caused an internal error in v3_codegen +%%-------------------------------------------------------------------- + +test_error_R16B03_norell() -> + test_error_R16B03_norell(#r{}, gazonk). + +test_error_R16B03_norell(Rec, Tag) -> + is_record(Rec, Tag, 3) orelse ok. diff --git a/lib/hipe/test/basic_SUITE_data/basic_issues_hipe.erl b/lib/hipe/test/basic_SUITE_data/basic_issues_hipe.erl new file mode 100644 index 0000000000..e71045bfe2 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_issues_hipe.erl @@ -0,0 +1,153 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains code examples that exhibited crashes in the HiPE compiler. +%%%------------------------------------------------------------------- +-module(basic_issues_hipe). + +-export([test/0]). + +%% functions that need to be exported so that they are retained. +-export([auth/4]). + +test() -> + ok = test_dominance_trees(), + ok = test_merged_const(), + ok = test_var_pair(), + ok = test_bif_fails(), + ok = test_find_catches(), + ok = test_heap_allocate_trim(), + ok. + +%%-------------------------------------------------------------------- +%% This is taken from a file sent to us by Martin Bjorklund @ Nortel +%% on 14th November 2004. The problem was in the SSA unconvert pass. +%% +%% No tests here; we simply check that the HiPE compiler does not go +%% into an infinite loop when compiling strange functions like this. +%%-------------------------------------------------------------------- + +auth(_, A, B, C) -> + auth(A, B, C, []). + +%%-------------------------------------------------------------------- +%% Exposed a crash in the generation of dominance trees used in SSA. +%%-------------------------------------------------------------------- + +-record(state, {f}). + +test_dominance_trees() -> + {ok, true} = doit(true, #state{f = true}), + ok. + +doit(Foo, S) -> + Fee = case Foo of + Bar when Bar == S#state.f; Bar == [] -> true; + _ -> false + end, + {ok, Fee}. + +%%-------------------------------------------------------------------- +%% Checks that the merging of constants in the constant table uses the +%% appropriate comparison function for this. +%%-------------------------------------------------------------------- + +test_merged_const() -> + Const1 = {'', 1.0000}, + Const2 = {'', 1}, + match(Const1, Const2). + +match(A, A) -> + error; +match(_A, _B) -> + ok. + +%%-------------------------------------------------------------------- +%% Checks that the HiPE compiler does not get confused by constant +%% data structures similar to the internal compiler data structures. +%%-------------------------------------------------------------------- + +test_var_pair() -> + ok = var_pair([gazonk]). + +var_pair([_|_]) -> + var_pair({var, some_atom}); +var_pair(_) -> + ok. + +%%-------------------------------------------------------------------- +%% This module was causing the HiPE compiler to crash in January 2007. +%% The culprit was an "optimization" of the BEAM compiler: postponing +%% the save of x variables when BIFs cannot fail. This was fixed on +%% February 1st, by making the HiPE compiler use the same functions +%% as the BEAM compiler for deciding whether a BIF fails. +%%-------------------------------------------------------------------- + +test_bif_fails() -> + [42] = bif_fails_in_catch([42]), + true = bif_fails_in_try([42]), + ok. + +bif_fails_in_catch(X) -> + case catch get(gazonk) of + _ -> X + end. + +bif_fails_in_try(X) -> + try + true = X =/= [] + catch + _ -> nil(X) + end. + +nil(_) -> []. + +%%-------------------------------------------------------------------- +%% Test that resulted in a native code compiler crash in the code of +%% hipe_icode_exceptions:find_catches/1 when compiling find_catches/2. +%%-------------------------------------------------------------------- + +test_find_catches() -> + 42 = find_catches(a, false), + ok. + +find_catches(X, Y) -> + case X of + a when Y =:= true -> + catch id(X), + X; + b when Y =:= true -> + catch id(X), + X; + a -> + catch id(X), + 42; + b -> + catch id(X), + 42 + end. + +id(X) -> X. + +%%-------------------------------------------------------------------- +%% Date: Dec 28, 2007 +%% +%% This is a test adapted from the file sent to the Erlang mailing +%% list by Eranga Udesh. The file did not compile because of problems +%% with the heap_allocate instruction and stack trimming. +%%-------------------------------------------------------------------- + +test_heap_allocate_trim() -> + {abandon, 42} = get_next_retry(a, 42), + ok. + +get_next_retry(Error, Count) -> + case catch pair(retry_scheme, {Error, Count}) of + _ -> + case pair(Error, Count) of + _ -> {abandon, Count} + end + end. + +pair(A, B) -> {A, B}. diff --git a/lib/hipe/test/basic_SUITE_data/basic_lists.erl b/lib/hipe/test/basic_SUITE_data/basic_lists.erl new file mode 100644 index 0000000000..264a7f86f6 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_lists.erl @@ -0,0 +1,61 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests that manipulate and pattern match against lists +%%% (perhaps by calling functions from the 'lists' module). +%%%------------------------------------------------------------------- +-module(basic_lists). + +-export([test/0]). + +test() -> + ok = test_length(), + ok = test_lists_key(), + ok = test_lists_and_strings(), + ok. + +%%-------------------------------------------------------------------- + +test_length() -> + Len = 42, + Lst = mklist(Len, []), + Len = iterate(100, Lst), + ok. + +mklist(0, L) -> L; +mklist(X, L) -> mklist(X-1, [X|L]). + +iterate(0, L) -> len(L, 0); +iterate(X, L) -> len(L, 0), iterate(X-1, L). + +len([_|X], L) -> len(X, L+1); +len([], L) -> L. + +%%-------------------------------------------------------------------- + +test_lists_key() -> + First = {x, 42.0}, + Second = {y, -77}, + Third = {z, [a, b, c], {5.0}}, + List = [First, Second, Third], + {value, First} = key_search_find(42, 2, List), + ok. + +key_search_find(Key, Pos, List) -> + case lists:keyfind(Key, Pos, List) of + false -> + false = lists:keysearch(Key, Pos, List); + Tuple when is_tuple(Tuple) -> + {value, Tuple} = lists:keysearch(Key, Pos, List) + end. + +%%-------------------------------------------------------------------- + +test_lists_and_strings() -> + LL = ["H'A", " H'B", " H'C"], + LL2 = lists:map(fun string:strip/1, LL), + HexFormat = fun(X, Acc) -> {string:substr(X, 3), Acc} end, + {LL3,_Ret} = lists:mapfoldl(HexFormat, 0, LL2), + ["A", "B", "C"] = lists:sublist(LL3, 42), + ok. diff --git a/lib/hipe/test/basic_SUITE_data/basic_module_info.erl b/lib/hipe/test/basic_SUITE_data/basic_module_info.erl new file mode 100644 index 0000000000..cab48b10ba --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_module_info.erl @@ -0,0 +1,32 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% Date: Oct 25, 2003 +%%% +%%% Tests whether calling module_info from the same module works. +%%% This seems trivial, but the problem is that the module_info/[0,1] +%%% functions that the BEAM file contains used to be dummy functions +%%% containing crap. So, these functions could not be used for +%%% compilation to native code and the functions that the BEAM loader +%%% generates should have been used instead. This was a HiPE bug +%%% reported by Dan Wallin. +%%%------------------------------------------------------------------- +-module(basic_module_info). + +-export([test/0]). + +test() -> + L = test_local_mi0_call(), + E = test_remote_mi1_call(), + {3, 3} = {L, E}, + ok. + +test_local_mi0_call() -> + ModInfo = module_info(), + %% io:format("ok, ModInfo=~w\n", [ModInfo]), + {exports, FunList} = lists:keyfind(exports, 1, ModInfo), + length(FunList). + +test_remote_mi1_call() -> + FunList = ?MODULE:module_info(exports), + length(FunList). diff --git a/lib/hipe/test/basic_SUITE_data/basic_pattern_match.erl b/lib/hipe/test/basic_SUITE_data/basic_pattern_match.erl new file mode 100644 index 0000000000..93240354a7 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_pattern_match.erl @@ -0,0 +1,46 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains code examples that test pattern matching against terms of +%%% various types. +%%%------------------------------------------------------------------- +-module(basic_pattern_match). + +-export([test/0]). + +test() -> + ok = test_hello_world(), + ok = test_list_plus_plus_match(), + ok. + +%%-------------------------------------------------------------------- +%% Trivial test to test pattern matching compilation with atoms, the +%% correct handling of all sorts of alphanumeric types in Erlang, and +%% conversions between them. + +test_hello_world() -> + String = gimme(string), + String = atom_to_list(gimme(atom)), + String = binary_to_list(gimme(binary)), + true = (list_to_atom(String) =:= gimme(atom)), + true = (list_to_binary(String) =:= gimme(binary)), + ok. + +gimme(string) -> + "hello world"; +gimme(atom) -> + 'hello world'; +gimme(binary) -> + <<"hello world">>. + +%%-------------------------------------------------------------------- +%% Makes sure that pattern matching expressions involving ++ work OK. +%% The third expression caused a problem in the Erlang shell of R11B-5. +%% It worked OK in both interpreted and compiled code. + +test_list_plus_plus_match() -> + ok = (fun("X" ++ _) -> ok end)("X"), + ok = (fun([$X | _]) -> ok end)("X"), + ok = (fun([$X] ++ _) -> ok end)("X"), + ok. diff --git a/lib/hipe/test/basic_SUITE_data/basic_random.erl b/lib/hipe/test/basic_SUITE_data/basic_random.erl new file mode 100644 index 0000000000..783947bd31 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_random.erl @@ -0,0 +1,238 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% A test for list handling created using the 'random' module. +%%%------------------------------------------------------------------- +-module(basic_random). + +-export([test/0]). + +%% It can be used as a benchmark by playing with the following defines +-define(N, 1000). +-define(Iter, 500). + +test() -> + ok = random(?N). + +random(N) -> + random(N, ?Iter). + +random(N, Iter) -> + random:seed(1, 2, 3), + t(ranlist(N, [], N*100), Iter). + +ranlist(0, L, _N) -> L; +ranlist(N, L, N0) -> ranlist(N-1, [random:uniform(N0)+300 | L], N0). + +t(_, 0) -> ok; +t(L, Iter) -> + %% io:format("Sort starting~n"), + sort(L), + t(L, Iter-1). + +sort([X, Y | L]) when X =< Y -> + split_1(X, Y, L, [], []); +sort([X, Y | L]) -> + split_2(X, Y, L, [], []); +sort(L) -> + L. + +%% Ascending. +split_1(X, Y, [Z | L], R, Rs) when Z >= Y -> + split_1(Y, Z, L, [X | R], Rs); +split_1(X, Y, [Z | L], R, Rs) when Z >= X -> + split_1(Z, Y, L, [X | R], Rs); +split_1(X, Y, [Z | L], [], Rs) -> + split_1(X, Y, L, [Z], Rs); +split_1(X, Y, [Z | L], R, Rs) -> + split_1_1(X, Y, L, R, Rs, Z); +split_1(X, Y, [], R, Rs) -> + rmergel([[Y, X | R] | Rs], []). + +%% One out-of-order element, S. +split_1_1(X, Y, [Z | L], R, Rs, S) when Z >= Y -> + split_1_1(Y, Z, L, [X | R], Rs, S); +split_1_1(X, Y, [Z | L], R, Rs, S) when Z >= X -> + split_1_1(Z, Y, L, [X | R], Rs, S); +split_1_1(X, Y, [Z | L], R, Rs, S) when S =< Z -> + split_1(S, Z, L, [], [[Y, X | R] | Rs]); +split_1_1(X, Y, [Z | L], R, Rs, S) -> + split_1(Z, S, L, [], [[Y, X | R] | Rs]); +split_1_1(X, Y, [], R, Rs, S) -> + rmergel([[S], [Y, X | R] | Rs], []). + +%% Descending. +split_2(X, Y, [Z | L], R, Rs) when Z =< Y -> + split_2(Y, Z, L, [X | R], Rs); +split_2(X, Y, [Z | L], R, Rs) when Z =< X -> + split_2(Z, Y, L, [X | R], Rs); +split_2(X, Y, [Z | L], [], Rs) -> + split_2(X, Y, L, [Z], Rs); +split_2(X, Y, [Z | L], R, Rs) -> + split_2_1(X, Y, L, R, Rs, Z); +split_2(X, Y, [], R, Rs) -> + mergel([[Y, X | R] | Rs], []). + +split_2_1(X, Y, [Z | L], R, Rs, S) when Z =< Y -> + split_2_1(Y, Z, L, [X | R], Rs, S); +split_2_1(X, Y, [Z | L], R, Rs, S) when Z =< X -> + split_2_1(Z, Y, L, [X | R], Rs, S); +split_2_1(X, Y, [Z | L], R, Rs, S) when S > Z -> + split_2(S, Z, L, [], [[Y, X | R] | Rs]); +split_2_1(X, Y, [Z | L], R, Rs, S) -> + split_2(Z, S, L, [], [[Y, X | R] | Rs]); +split_2_1(X, Y, [], R, Rs, S) -> + mergel([[S], [Y, X | R] | Rs], []). + +mergel([[] | L], Acc) -> + mergel(L, Acc); +mergel([A, [H2 | T2], [H3 | T3] | L], Acc) -> + mergel(L, [merge3_1(A, [], H2, T2, H3, T3) | Acc]); +mergel([A, [H | T]], Acc) -> + rmergel([merge2_1(A, H, T, []) | Acc], []); +mergel([L], []) -> + L; +mergel([L], Acc) -> + rmergel([lists:reverse(L, []) | Acc], []); +mergel([], []) -> + []; +mergel([], Acc) -> + rmergel(Acc, []); +mergel([A, [] | L], Acc) -> + mergel([A | L], Acc); +mergel([A, B, [] | L], Acc) -> + mergel([A, B | L], Acc). + +rmergel([A, [H2 | T2], [H3 | T3] | L], Acc) -> + rmergel(L, [rmerge3_1(A, [], H2, T2, H3, T3) | Acc]); +rmergel([A, [H | T]], Acc) -> + mergel([rmerge2_1(A, H, T, []) | Acc], []); +rmergel([L], Acc) -> + mergel([lists:reverse(L, []) | Acc], []); +rmergel([], Acc) -> + mergel(Acc, []). + +%% Take L1 apart. +merge3_1([H1 | T1], M, H2, T2, H3, T3) when H1 =< H2 -> + merge3_12(T1, H1, H2, T2, H3, T3, M); +merge3_1([H1 | T1], M, H2, T2, H3, T3) -> + merge3_21(T1, H1, H2, T2, H3, T3, M); +merge3_1(_nil, M, H2, T2, H3, T3) when H2 =< H3 -> + merge2_1(T2, H3, T3, [H2 | M]); +merge3_1(_nil, M, H2, T2, H3, T3) -> + merge2_1(T3, H2, T2, [H3 | M]). + +%% Take L2 apart. +merge3_2(T1, H1, M, [H2 | T2], H3, T3) when H1 =< H2 -> + merge3_12(T1, H1, H2, T2, H3, T3, M); +merge3_2(T1, H1, M, [H2 | T2], H3, T3) -> + merge3_21(T1, H1, H2, T2, H3, T3, M); +merge3_2(T1, H1, M, _nil, H3, T3) when H1 =< H3 -> + merge2_1(T1, H3, T3, [H1 | M]); +merge3_2(T1, H1, M, _nil, H3, T3) -> + merge2_1(T3, H1, T1, [H3 | M]). + +%% H1 <= H2. Inlined. +merge3_12(T1, H1, H2, T2, H3, T3, M) when H3 < H1 -> + merge3_12_3(T1, H1, H2, T2, [H3 | M], T3); +merge3_12(T1, H1, H2, T2, H3, T3, M) -> + merge3_1(T1, [H1 | M], H2, T2, H3, T3). + +%% H1 <= H2, take L3 apart. +merge3_12_3(T1, H1, H2, T2, M, [H3 | T3]) when H3 < H1 -> + merge3_12_3(T1, H1, H2, T2, [H3 | M], T3); +merge3_12_3(T1, H1, H2, T2, M, [H3 | T3]) -> + merge3_1(T1, [H1 | M], H2, T2, H3, T3); +merge3_12_3(T1, H1, H2, T2, M, _nil) -> + merge2_1(T1, H2, T2, [H1 | M]). + +%% H1 > H2. Inlined. +merge3_21(T1, H1, H2, T2, H3, T3, M) when H3 < H2 -> + merge3_21_3(T1, H1, H2, T2, [H3 | M], T3); +merge3_21(T1, H1, H2, T2, H3, T3, M) -> + merge3_2(T1, H1, [H2 | M], T2, H3, T3). + +%% H1 > H2, take L3 apart. +merge3_21_3(T1, H1, H2, T2, M, [H3 | T3]) when H3 < H2 -> + merge3_21_3(T1, H1, H2, T2, [H3 | M], T3); +merge3_21_3(T1, H1, H2, T2, M, [H3 | T3]) -> + merge3_2(T1, H1, [H2 | M], T2, H3, T3); +merge3_21_3(T1, H1, H2, T2, M, _nil) -> + merge2_1(T2, H1, T1, [H2 | M]). + +%% Take L1 apart. +rmerge3_1([H1 | T1], M, H2, T2, H3, T3) when H1 > H2 -> + rmerge3_12(T1, H1, H2, T2, H3, T3, M); +rmerge3_1([H1 | T1], M, H2, T2, H3, T3) -> + rmerge3_21(T1, H1, H2, T2, H3, T3, M); +rmerge3_1(_nil, M, H2, T2, H3, T3) when H2 > H3 -> + rmerge2_1(T2, H3, T3, [H2 | M]); +rmerge3_1(_nil, M, H2, T2, H3, T3) -> + rmerge2_1(T3, H2, T2, [H3 | M]). + +%% Take L2 apart. +rmerge3_2(T1, H1, M, [H2 | T2], H3, T3) when H1 > H2 -> + rmerge3_12(T1, H1, H2, T2, H3, T3, M); +rmerge3_2(T1, H1, M, [H2 | T2], H3, T3) -> + rmerge3_21(T1, H1, H2, T2, H3, T3, M); +rmerge3_2(T1, H1, M, _nil, H3, T3) when H1 > H3 -> + rmerge2_1(T1, H3, T3, [H1 | M]); +rmerge3_2(T1, H1, M, _nil, H3, T3) -> + rmerge2_1(T3, H1, T1, [H3 | M]). + +%% H1 > H2. Inlined. +rmerge3_12(T1, H1, H2, T2, H3, T3, M) when H3 >= H1 -> + rmerge3_12_3(T1, H1, H2, T2, [H3 | M], T3); +rmerge3_12(T1, H1, H2, T2, H3, T3, M) -> + rmerge3_1(T1, [H1 | M], H2, T2, H3, T3). + +%% H1 > H2, take L3 apart. +rmerge3_12_3(T1, H1, H2, T2, M, [H3 | T3]) when H3 >= H1 -> + rmerge3_12_3(T1, H1, H2, T2, [H3 | M], T3); +rmerge3_12_3(T1, H1, H2, T2, M, [H3 | T3]) -> + rmerge3_1(T1, [H1 | M], H2, T2, H3, T3); +rmerge3_12_3(T1, H1, H2, T2, M, _nil) -> + rmerge2_1(T1, H2, T2, [H1 | M]). + +%% H1 =< H2. Inlined. +rmerge3_21(T1, H1, H2, T2, H3, T3, M) when H3 >= H2 -> + rmerge3_21_3(T1, H1, H2, T2, [H3 | M], T3); +rmerge3_21(T1, H1, H2, T2, H3, T3, M) -> + rmerge3_2(T1, H1, [H2 | M], T2, H3, T3). + +%% H1 =< H2, take L3 apart. +rmerge3_21_3(T1, H1, H2, T2, M, [H3 | T3]) when H3 >= H2 -> + rmerge3_21_3(T1, H1, H2, T2, [H3 | M], T3); +rmerge3_21_3(T1, H1, H2, T2, M, [H3 | T3]) -> + rmerge3_2(T1, H1, [H2 | M], T2, H3, T3); +rmerge3_21_3(T1, H1, H2, T2, M, _nil) -> + rmerge2_1(T2, H1, T1, [H2 | M]). + +merge2_1([H1 | T1], H2, T2, M) when H2 < H1 -> + merge2_2(T1, H1, T2, [H2 | M]); +merge2_1([H1 | T1], H2, T2, M) -> + merge2_1(T1, H2, T2, [H1 | M]); +merge2_1(_nil, H2, T2, M) -> + lists:reverse(T2, [H2 | M]). + +merge2_2(T1, H1, [H2 | T2], M) when H1 < H2 -> + merge2_1(T1, H2, T2, [H1 | M]); +merge2_2(T1, H1, [H2 | T2], M) -> + merge2_2(T1, H1, T2, [H2 | M]); +merge2_2(T1, H1, _nil, M) -> + lists:reverse(T1, [H1 | M]). + +rmerge2_1([H1 | T1], H2, T2, M) when H2 >= H1 -> + rmerge2_2(T1, H1, T2, [H2 | M]); +rmerge2_1([H1 | T1], H2, T2, M) -> + rmerge2_1(T1, H2, T2, [H1 | M]); +rmerge2_1(_nil, H2, T2, M) -> + lists:reverse(T2, [H2 | M]). + +rmerge2_2(T1, H1, [H2 | T2], M) when H1 >= H2 -> + rmerge2_1(T1, H2, T2, [H1 | M]); +rmerge2_2(T1, H1, [H2 | T2], M) -> + rmerge2_2(T1, H1, T2, [H2 | M]); +rmerge2_2(T1, H1, _nil, M) -> + lists:reverse(T1, [H1 | M]). diff --git a/lib/hipe/test/basic_SUITE_data/basic_receive.erl b/lib/hipe/test/basic_SUITE_data/basic_receive.erl new file mode 100644 index 0000000000..5f865d7b7a --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_receive.erl @@ -0,0 +1,56 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains code examples that test correct handling of receives. +%%%------------------------------------------------------------------- +-module(basic_receive). + +-export([test/0]). + +test() -> + ok = test_wait_timeout(), + ok = test_double_timeout(), + ok = test_reschedule(), + ok. + +%%-------------------------------------------------------------------- + +test_wait_timeout() -> + receive after 42 -> ok end. + +%%-------------------------------------------------------------------- + +test_double_timeout() -> + self() ! foo, + self() ! another_foo, + receive + non_existent -> weird + after 0 -> timeout + end, + receive + foo -> ok + after 1000 -> timeout + end. + +%%-------------------------------------------------------------------- +%% Check that RESCHEDULE returns from BIFs work. + +test_reschedule() -> + erts_debug:set_internal_state(available_internal_state, true), + First = self(), + Second = spawn(fun() -> doit(First) end), + receive + Second -> ok + end, + receive + after 42 -> ok + end, + erts_debug:set_internal_state(hipe_test_reschedule_resume, Second), + ok. + +doit(First) -> + First ! self(), + erts_debug:set_internal_state(hipe_test_reschedule_suspend, 1). + +%%-------------------------------------------------------------------- diff --git a/lib/hipe/test/basic_SUITE_data/basic_records.erl b/lib/hipe/test/basic_SUITE_data/basic_records.erl new file mode 100644 index 0000000000..cbb451196c --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_records.erl @@ -0,0 +1,28 @@ +%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests that manipulate and pattern match against records. +%%%------------------------------------------------------------------- +-module(basic_records). + +-export([test/0]). + +test() -> + ok = test_rec1(), + ok. + +%%-------------------------------------------------------------------- + +-record(r, {ra}). +-record(s, {sa, sb, sc, sd}). + +test_rec1() -> + R = #r{}, + S = #s{}, + S1 = S#s{sc=R, sd=1}, + R1 = S1#s.sc, + undefined = R1#r.ra, + ok. + +%%-------------------------------------------------------------------- diff --git a/lib/hipe/test/basic_SUITE_data/basic_strength_reduce.erl b/lib/hipe/test/basic_SUITE_data/basic_strength_reduce.erl new file mode 100644 index 0000000000..0f94320a33 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_strength_reduce.erl @@ -0,0 +1,65 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Tests the strength reduction component of the HiPE compiler. +%%%------------------------------------------------------------------- +-module(basic_strength_reduce). + +-export([test/0]). +%% These functions are exported so as to not remove them by inlining +-export([crash_0/1, crash_1/1, crash_2/1, crash_3/1, bug_div_2N/1]). + +test() -> + ok = test_strength_reduce1(), + ok. + +%%-------------------------------------------------------------------- + +test_strength_reduce1() -> + ok = crash_0(0), + ok = crash_1(42), + ok = crash_2(42), + ok = crash_3(42), + 5 = 42 bsr 3 = bug_div_2N(42), + -6 = -42 bsr 3 = bug_div_2N(-42) - 1, + ok. + +%% This is a crash report by Peter Wang (10 July 2007) triggering an +%% R11B-5 crash: strength reduction could not handle calls with no +%% destination +crash_0(A) -> + case A of + 0 -> + A div 8, + ok + end. + +%% The above was simplified to the following which showed another +%% crash, this time on RTL +crash_1(A) when is_integer(A), A >= 0 -> + A div 8, + ok. + +%% A similar crash like the first one, but in a different place in the +%% code, was triggered by the following code +crash_2(A) when is_integer(A), A >= 0 -> + A div 1, + ok. + +%% A crash similar to the first one happened in the following code +crash_3(A) -> + case A of + 42 -> + A * 0, + ok + end. + +%% Strength reduction for div/2 and rem/2 with a power of 2 +%% should be performed only for non-negative integers +bug_div_2N(X) when is_integer(X), X >= 0 -> + X div 8; +bug_div_2N(X) when is_integer(X), X < 0 -> + X div 8. + +%%-------------------------------------------------------------------- diff --git a/lib/hipe/test/basic_SUITE_data/basic_switches.erl b/lib/hipe/test/basic_SUITE_data/basic_switches.erl new file mode 100644 index 0000000000..0a7ae5b8b7 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_switches.erl @@ -0,0 +1,52 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests for pattern matching switches. +%%%------------------------------------------------------------------- +-module(basic_switches). + +-export([test/0]). + +test() -> + ok = test_switch_mix(), + ok. + +%%--------------------------------------------------------------------- + +-define(BIG1, 21323233222132323322). +-define(BIG2, 4242424242424242424242424242424242). + +test_switch_mix() -> + small1 = t(42), + small2 = t(17), + big1 = t(?BIG1), + big2 = t(?BIG2), + atom = t(foo), + pid = t(self()), + float = t(4.2), + ok. + +t(V) -> + S = self(), + case V of + 42 -> small1; + 17 -> small2; + ?BIG1 -> big1; + ?BIG2 -> big2; + 1 -> no; + 2 -> no; + 3 -> no; + 4 -> no; + 5 -> no; + 6 -> no; + 7 -> no; + 8 -> no; + foo -> atom; + 9 -> no; + 4.2 -> float; + S -> pid; + _ -> no + end. + +%%--------------------------------------------------------------------- diff --git a/lib/hipe/test/basic_SUITE_data/basic_tail_rec.erl b/lib/hipe/test/basic_SUITE_data/basic_tail_rec.erl new file mode 100644 index 0000000000..0124f13df6 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_tail_rec.erl @@ -0,0 +1,39 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests that check that tail recursion optimization occurs. +%%%------------------------------------------------------------------- +-module(basic_tail_rec). + +-export([test/0]). +-export([app0/2]). %% used in an apply/3 call + +test() -> + ok = test_app_tail(), + ok. + +%%-------------------------------------------------------------------- +%% Written by Mikael Pettersson: check that apply is tail recursive. + +%% Increased the following quantity from 20 to 30 so that the test +%% remains valid even with the naive register allocator. - Kostis +-define(SIZE_INCREASE, 30). + +test_app_tail() -> + Inc = start(400), + %% io:format("Inc ~w\n", [Inc]), + case Inc > ?SIZE_INCREASE of + true -> + {error, "apply/3 is not tail recursive in native code"}; + false -> + ok + end. + +start(N) -> + app0(N, hipe_bifs:nstack_used_size()). + +app0(0, Size0) -> + hipe_bifs:nstack_used_size() - Size0; +app0(N, Size) -> + apply(?MODULE, app0, [N-1, Size]). diff --git a/lib/hipe/test/basic_SUITE_data/basic_tuples.erl b/lib/hipe/test/basic_SUITE_data/basic_tuples.erl new file mode 100644 index 0000000000..94c187e364 --- /dev/null +++ b/lib/hipe/test/basic_SUITE_data/basic_tuples.erl @@ -0,0 +1,177 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% Author: Kostis Sagonas +%%% +%%% Contains tests that manipulate and pattern match against tuples. +%%%------------------------------------------------------------------- +-module(basic_tuples). + +-export([test/0]). + +test() -> + Num = 4711, + ok = test_match({}, {1}, {1,2}, {1,2,3}, {1,2,3,4}, {1,2,3,4,5}, + {1,2,3,4,5,6}, {1,2,3,4,5,6,7}, {1,2,3,4,5,6,7,8}), + ok = test_size({}, {a}, {{a},{b}}, {a,{b},c}), + ok = test_element({}, {a}, {a,b}, Num), + ok = test_setelement({}, {1}, {1,2}, 3, [1,2]), + ok = test_tuple_to_list({}, {a}, {a,b}, {a,b,c}, {a,b,c,d}, Num), + ok = test_list_to_tuple([], [a], [a,b], [a,b,c], [a,b,c,d], Num), + ok = test_tuple_with_case(), + ok = test_tuple_in_guard({a, b}, {a, b, c}), + ok. + +%%-------------------------------------------------------------------- +%% Tests matching of tuples + +test_match(T0, T1, T2, T3, T4, T5, T6, T7, T8) -> + {} = T0, + {1} = T1, + {1, 2} = T2, + {1, 2, 3} = T3, + {1, 2, 3, 4} = T4, + {1, 2, 3, 4, 5} = T5, + {1, 2, 3, 4, 5, 6} = T6, + T6 = {1, 2, 3, 4, 5, 6}, + T7 = {1, 2, 3, 4, 5, 6, 7}, + {1, 2, 3, 4, 5, 6, 7, 8} = T8, + ok. + +%%-------------------------------------------------------------------- +%% Tests the size/1 and tuple_size/1 BIFs. + +test_size(T0, T1, T2, T3) -> + [0, 1, 2, 3] = [size(T) || T <- [T0, T1, T2, T3]], + [0, 1, 2, 3] = [tuple_size(T) || T <- [T0, T1, T2, T3]], + ok. + +%%-------------------------------------------------------------------- +%% Tests element/2. + +test_element(T0, T1, T2, N) -> + a = element(1, T1), + a = element(1, T2), + %% indirect calls to element/2 + List = lists:seq(1, N), + Tuple = list_to_tuple(List), + ok = get_elements(List, Tuple, 1), + %% some cases that throw exceptions + {'EXIT', _} = (catch my_element(0, T2)), + {'EXIT', _} = (catch my_element(3, T2)), + {'EXIT', _} = (catch my_element(1, T0)), + {'EXIT', _} = (catch my_element(1, List)), + {'EXIT', _} = (catch my_element(1, N)), + {'EXIT', _} = (catch my_element(1.5, T2)), + ok. + +my_element(Pos, Term) -> + element(Pos, Term). + +get_elements([Element|Rest], Tuple, Pos) -> + Element = element(Pos, Tuple), + get_elements(Rest, Tuple, Pos + 1); +get_elements([], _Tuple, _Pos) -> + ok. + +%%-------------------------------------------------------------------- +%% Tests set_element/3. + +test_setelement(T0, T1, Pair, Three, L) -> + {x} = setelement(1, T1, x), + {x, 2} = setelement(1, Pair, x), + {1, x} = setelement(2, Pair, x), + %% indirect calls to setelement/3 + Tuple = list_to_tuple(lists:duplicate(2048, x)), + NewTuple = set_all_elements(Tuple, 1), + NewTuple = list_to_tuple(lists:seq(1+7, 2048+7)), + %% the following cases were rewritten to use the Three + %% variable in this weird way so as to silence the compiler + {'EXIT', _} = (catch setelement(Three - Three, Pair, x)), + {'EXIT', _} = (catch setelement(Three, Pair, x)), + {'EXIT', _} = (catch setelement(Three div Three, T0, x)), + {'EXIT', _} = (catch setelement(Three div Three, L, x)), + {'EXIT', _} = (catch setelement(Three / 2, Pair, x)), + ok. + +set_all_elements(Tuple, Pos) when Pos =< tuple_size(Tuple) -> + set_all_elements(setelement(Pos, Tuple, Pos+7), Pos+1); +set_all_elements(Tuple, Pos) when Pos > tuple_size(Tuple) -> + Tuple. + +%%-------------------------------------------------------------------- +%% Tests tuple_to_list/1. + +test_tuple_to_list(T0, T1, T2, T3, T4, Size) -> + [] = tuple_to_list(T0), + [a] = tuple_to_list(T1), + [a, b] = tuple_to_list(T2), + [a, b, c] = tuple_to_list(T3), + [a, b, c, d] = tuple_to_list(T4), + [a, b, c, d] = tuple_to_list(T4), + %% test a big tuple + List = lists:seq(1, Size), + Tuple = list_to_tuple(List), + Size = tuple_size(Tuple), + List = tuple_to_list(Tuple), + %% some cases that should result in errors + {'EXIT', _} = (catch my_tuple_to_list(element(2, T3))), + {'EXIT', _} = (catch my_tuple_to_list(Size)), + ok. + +my_tuple_to_list(X) -> + tuple_to_list(X). + +%%-------------------------------------------------------------------- +%% Tests list_to_tuple/1. + +test_list_to_tuple(L0, L1, L2, L3, L4, Size) -> + {} = list_to_tuple(L0), + {a} = list_to_tuple(L1), + {a, b} = list_to_tuple(L2), + {a, b, c} = list_to_tuple(L3), + {a, b, c, d} = list_to_tuple(L4), + {a, b, c, d, e} = list_to_tuple(L4++[e]), + %% test list_to_tuple with a big list + Tuple = list_to_tuple(lists:seq(1, Size)), + Size = tuple_size(Tuple), + %% some cases that should result in errors + {'EXIT', _} = (catch my_list_to_tuple({a,b})), + {'EXIT', _} = (catch my_list_to_tuple([hd(L1)|hd(L2)])), + ok. + +my_list_to_tuple(X) -> + list_to_tuple(X). + +%%-------------------------------------------------------------------- +%% Tests that a case nested inside a tuple is ok. +%% (This was known to crash earlier versions of BEAM.) + +test_tuple_with_case() -> + {reply, true} = tuple_with_case(), + ok. + +tuple_with_case() -> + %% The following comments apply to the BEAM compiler. + void(), % Reset var count. + {reply, % Compiler will choose {x,1} for tuple. + case void() of % Call will reset var count. + {'EXIT', Reason} -> % Case will return in {x,1} (first free), + {error, Reason}; % but the tuple will be build in {x,1}, + _ -> % so case value is lost and a circular + true % data element is built. + end}. + +void() -> ok. + +%%-------------------------------------------------------------------- +%% Test to build a tuple in a guard. + +test_tuple_in_guard(T2, T3) -> + %% T2 = {a, b}; T3 = {a, b, c} + ok = if T2 == {element(1, T3), element(2, T3)} -> ok; + true -> other + end, + ok = if T3 == {element(1, T3), element(2, T3), element(3, T3)} -> ok; + true -> other + end, + ok. |